Micron Document
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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Iridium</span></h1>
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<th colspan="2" style="background:LightCoral; font-size:120%; color:#202122;">Eigenschaften
</th></tr>
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<table cellpadding="0" cellspacing="1" style="margin:auto; background-color:color:var(--color-inverted, #FFFFFF); color:var(--color-base, #000000); text-align:center; empty-cells:show; border-collapse:separate; border-style:hidden;">
<tbody><tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LimeGreen;"><div style="position:absolute; top:0; left:0;"><a href="Wasserstoff" title="Wasserstoff"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 1: Wasserstoff (H), Nichtmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td colspan="30">
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightskyBlue;"><div style="position:absolute; top:0; left:0;"><a href="Helium" title="Helium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 2: Helium (He), Edelgas">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr>
<tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:OrangeRed;"><div style="position:absolute; top:0; left:0;"><a href="Lithium" title="Lithium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 3: Lithium (Li), Alkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkOrange;"><div style="position:absolute; top:0; left:0;"><a href="Beryllium" title="Beryllium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 4: Beryllium (Be), Erdalkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td colspan="24">
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Bor" title="Bor"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 5: Bor (B), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LimeGreen;"><div style="position:absolute; top:0; left:0;"><a href="Kohlenstoff" title="Kohlenstoff"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 6: Kohlenstoff (C), Nichtmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LimeGreen;"><div style="position:absolute; top:0; left:0;"><a href="Stickstoff" title="Stickstoff"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 7: Stickstoff (N), Nichtmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LimeGreen;"><div style="position:absolute; top:0; left:0;"><a href="Sauerstoff" title="Sauerstoff"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 8: Sauerstoff (O), Nichtmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Khaki;"><div style="position:absolute; top:0; left:0;"><a href="Fluor" title="Fluor"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 9: Fluor (F), Halogen">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightskyBlue;"><div style="position:absolute; top:0; left:0;"><a href="Neon" title="Neon"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 10: Neon (Ne), Edelgas">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr>
<tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:OrangeRed;"><div style="position:absolute; top:0; left:0;"><a href="Natrium" title="Natrium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 11: Natrium (Na), Alkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkOrange;"><div style="position:absolute; top:0; left:0;"><a href="Magnesium" title="Magnesium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 12: Magnesium (Mg), Erdalkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td colspan="24">
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Aluminium" title="Aluminium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 13: Aluminium (Al), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Silicium" title="Silicium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 14: Silicium (Si), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LimeGreen;"><div style="position:absolute; top:0; left:0;"><a href="Phosphor" title="Phosphor"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 15: Phosphor (P), Nichtmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LimeGreen;"><div style="position:absolute; top:0; left:0;"><a href="Schwefel" title="Schwefel"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 16: Schwefel (S), Nichtmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Khaki;"><div style="position:absolute; top:0; left:0;"><a href="Chlor" title="Chlor"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 17: Chlor (Cl), Halogen">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightskyBlue;"><div style="position:absolute; top:0; left:0;"><a href="Argon" title="Argon"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 18: Argon (Ar), Edelgas">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr>
<tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:OrangeRed;"><div style="position:absolute; top:0; left:0;"><a href="Kalium" title="Kalium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 19: Kalium (K), Alkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkOrange;"><div style="position:absolute; top:0; left:0;"><a href="Calcium" title="Calcium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 20: Calcium (Ca), Erdalkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Scandium" title="Scandium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 21: Scandium (Sc), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td colspan="14">
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Titan_(Element)" title="Titan (Element)"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 22: Titan (Ti), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Vanadium" title="Vanadium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 23: Vanadium (V), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Chrom" title="Chrom"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 24: Chrom (Cr), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Mangan" title="Mangan"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 25: Mangan (Mn), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Eisen" title="Eisen"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 26: Eisen (Fe), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Cobalt" title="Cobalt"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 27: Cobalt (Co), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Nickel" title="Nickel"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 28: Nickel (Ni), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Kupfer" title="Kupfer"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 29: Kupfer (Cu), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Zink" title="Zink"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 30: Zink (Zn), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Gallium" title="Gallium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 31: Gallium (Ga), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Germanium" title="Germanium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 32: Germanium (Ge), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Arsen" title="Arsen"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 33: Arsen (As), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Selen" title="Selen"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 34: Selen (Se), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Khaki;"><div style="position:absolute; top:0; left:0;"><a href="Brom" title="Brom"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 35: Brom (Br), Halogen">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightskyBlue;"><div style="position:absolute; top:0; left:0;"><a href="Krypton" title="Krypton"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 36: Krypton (Kr), Edelgas">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr>
<tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:OrangeRed;"><div style="position:absolute; top:0; left:0;"><a href="Rubidium" title="Rubidium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 37: Rubidium (Rb), Alkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkOrange;"><div style="position:absolute; top:0; left:0;"><a href="Strontium" title="Strontium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 38: Strontium (Sr), Erdalkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Yttrium" title="Yttrium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 39: Yttrium (Y), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td colspan="14">
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Zirconium" title="Zirconium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 40: Zirconium (Zr), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Niob" title="Niob"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 41: Niob (Nb), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Molybd%C3%A4n" title="Molybdän"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 42: Molybdän (Mo), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Technetium" title="Technetium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 43: Technetium (Tc), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Ruthenium" title="Ruthenium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 44: Ruthenium (Ru), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Rhodium" title="Rhodium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 45: Rhodium (Rh), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Palladium" title="Palladium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 46: Palladium (Pd), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Silber" title="Silber"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 47: Silber (Ag), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Cadmium" title="Cadmium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 48: Cadmium (Cd), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Indium" title="Indium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 49: Indium (In), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Zinn" title="Zinn"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 50: Zinn (Sn), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Antimon" title="Antimon"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 51: Antimon (Sb), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Peru;"><div style="position:absolute; top:0; left:0;"><a href="Tellur" title="Tellur"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 52: Tellur (Te), Halbmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Khaki;"><div style="position:absolute; top:0; left:0;"><a href="Iod" title="Iod"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 53: Iod (I), Halogen">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightskyBlue;"><div style="position:absolute; top:0; left:0;"><a href="Xenon" title="Xenon"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 54: Xenon (Xe), Edelgas">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr>
<tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:OrangeRed;"><div style="position:absolute; top:0; left:0;"><a href="Caesium" title="Caesium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 55: Caesium (Cs), Alkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkOrange;"><div style="position:absolute; top:0; left:0;"><a href="Barium" title="Barium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 56: Barium (Ba), Erdalkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Lanthan" title="Lanthan"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 57: Lanthan (La), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Cer" title="Cer"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 58: Cer (Ce), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Praseodym" title="Praseodym"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 59: Praseodym (Pr), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Neodym" title="Neodym"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 60: Neodym (Nd), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Promethium" title="Promethium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 61: Promethium (Pm), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Samarium" title="Samarium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 62: Samarium (Sm), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Europium" title="Europium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 63: Europium (Eu), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Gadolinium" title="Gadolinium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 64: Gadolinium (Gd), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Terbium" title="Terbium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 65: Terbium (Tb), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Dysprosium" title="Dysprosium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 66: Dysprosium (Dy), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Holmium" title="Holmium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 67: Holmium (Ho), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Erbium" title="Erbium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 68: Erbium (Er), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Thulium" title="Thulium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 69: Thulium (Tm), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Ytterbium" title="Ytterbium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 70: Ytterbium (Yb), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Plum;"><div style="position:absolute; top:0; left:0;"><a href="Lutetium" title="Lutetium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 71: Lutetium (Lu), Lanthanoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Hafnium" title="Hafnium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 72: Hafnium (Hf), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Tantal" title="Tantal"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 73: Tantal (Ta), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Wolfram" title="Wolfram"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 74: Wolfram (W), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Rhenium" title="Rhenium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 75: Rhenium (Re), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Osmium" title="Osmium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 76: Osmium (Os), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral; border:2px solid #72777D; margin:-1px"><div style="position:absolute; top:0; left:0;"><a class="mw-selflink selflink"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 77: Iridium (Ir), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Platin" title="Platin"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 78: Platin (Pt), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Gold" title="Gold"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 79: Gold (Au), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Quecksilber" title="Quecksilber"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 80: Quecksilber (Hg), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Thallium" title="Thallium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 81: Thallium (Tl), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Blei" title="Blei"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 82: Blei (Pb), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Bismut" title="Bismut"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 83: Bismut (Bi), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkGray;"><div style="position:absolute; top:0; left:0;"><a href="Polonium" title="Polonium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 84: Polonium (Po), Metall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Khaki;"><div style="position:absolute; top:0; left:0;"><a href="Astat" title="Astat"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 85: Astat (At), Halogen">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightskyBlue;"><div style="position:absolute; top:0; left:0;"><a href="Radon" title="Radon"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 86: Radon (Rn), Edelgas">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr>
<tr>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:OrangeRed;"><div style="position:absolute; top:0; left:0;"><a href="Francium" title="Francium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 87: Francium (Fr), Alkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:DarkOrange;"><div style="position:absolute; top:0; left:0;"><a href="Radium" title="Radium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 88: Radium (Ra), Erdalkalimetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Actinium" title="Actinium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 89: Actinium (Ac), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Thorium" title="Thorium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 90: Thorium (Th), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Protactinium" title="Protactinium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 91: Protactinium (Pa), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Uran" title="Uran"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 92: Uran (U), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Neptunium" title="Neptunium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 93: Neptunium (Np), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Plutonium" title="Plutonium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 94: Plutonium (Pu), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Americium" title="Americium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 95: Americium (Am), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Curium" title="Curium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 96: Curium (Cm), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Berkelium" title="Berkelium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 97: Berkelium (Bk), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Californium" title="Californium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 98: Californium (Cf), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Einsteinium" title="Einsteinium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 99: Einsteinium (Es), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Fermium" title="Fermium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 100: Fermium (Fm), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Mendelevium" title="Mendelevium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 101: Mendelevium (Md), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Nobelium" title="Nobelium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 102: Nobelium (No), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Orchid;"><div style="position:absolute; top:0; left:0;"><a href="Lawrencium" title="Lawrencium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 103: Lawrencium (Lr), Actinoid">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Rutherfordium" title="Rutherfordium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 104: Rutherfordium (Rf), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Dubnium" title="Dubnium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 105: Dubnium (Db), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Seaborgium" title="Seaborgium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 106: Seaborgium (Sg), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Bohrium" title="Bohrium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 107: Bohrium (Bh), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:LightCoral;"><div style="position:absolute; top:0; left:0;"><a href="Hassium" title="Hassium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 108: Hassium (Hs), Übergangsmetall">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Meitnerium" title="Meitnerium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 109: Meitnerium (Mt), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Darmstadtium" title="Darmstadtium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 110: Darmstadtium (Ds), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Roentgenium" title="Roentgenium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 111: Roentgenium (Rg), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Copernicium" title="Copernicium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 112: Copernicium (Cn), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Nihonium" title="Nihonium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 113: Nihonium (Nh), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Flerovium" title="Flerovium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 114: Flerovium (Fl), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Moscovium" title="Moscovium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 115: Moscovium (Mc), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Livermorium" title="Livermorium"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 116: Livermorium (Lv), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Tenness" title="Tenness"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 117: Tenness (Ts), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td>
<td><div style="position:relative; overflow:hidden; width:11px; height:11px; color:#202122; background:Gainsboro;"><div style="position:absolute; top:0; left:0;"><a href="Oganesson" title="Oganesson"><span style="float:left; width:10px; height:10px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 118: Oganesson (Og), unbekannt">&nbsp; &nbsp;</span></a></div>
</div>
</td></tr></tbody></table>
<div id="text0" style="font-size:12px; position:absolute; top:5px; left:50%; margin-left:-125px;line-height:120%;">[<a href="Xenon" title="Xenon">Xe</a>] 4<a href="F-Orbital" class="mw-redirect" title="F-Orbital">f</a><sup>14</sup> 5<a href="D-Orbital" class="mw-redirect" title="D-Orbital">d</a><sup>7</sup> 6<a href="S-Orbital" class="mw-redirect" title="S-Orbital">s</a><sup>2</sup></div>
<div style="position:absolute; top:5px; left:45%; margin-left:20px;line-height:120%;"><span id="text2" style="font-size:10px; vertical-align: sub;">77</span><span id="text3" style="font-size:20px; font-weight:bold;">Ir</span></div>
<div style="font-size:90%; text-align:right;"><a href="Periodensystem" title="Periodensystem">Periodensystem</a></div></div>
</td></tr>
<tr>
<th colspan="2" style="background:LightCoral; color:#202122;">Allgemein
</th></tr>
<tr>
<td><a href="Chemisches_Element#Sortierte_Liste_chemischer_Elemente" title="Chemisches Element">Name</a>, <a href="Elementsymbol" title="Elementsymbol">Symbol</a>, <a href="Ordnungszahl" title="Ordnungszahl">Ordnungszahl</a>
</td>
<td style="white-space:nowrap;">Iridium, Ir, 77
</td></tr>
<tr>
<td><a href="Elementkategorie" title="Elementkategorie">Elementkategorie</a>
</td>
<td style="white-space:nowrap;"><a href="%C3%9Cbergangsmetalle" title="Übergangsmetalle">Übergangsmetalle</a>
</td></tr>
<tr>
<td><a href="Gruppe_des_Periodensystems" title="Gruppe des Periodensystems">Gruppe</a>, <a href="Periode_des_Periodensystems" title="Periode des Periodensystems">Periode</a>, <a href="Block_des_Periodensystems" class="mw-redirect" title="Block des Periodensystems">Block</a>
</td>
<td style="white-space:nowrap;"><a href="Cobaltgruppe" title="Cobaltgruppe">9</a>, <a href="Chemische_Elemente_der_sechsten_Periode" title="Chemische Elemente der sechsten Periode">6</a>, <a href="Periodensystem#Block" title="Periodensystem">d</a>
</td></tr>
<tr>
<td>Aussehen
</td>
<td>silbrig weiß
</td></tr>
<tr>
<td><a href="CAS-Nummer" title="CAS-Nummer">CAS-Nummer</a>
</td>
<td>
<p><span title="Untervorlage eingebunden: CASRN"></span><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=7439-88-5">7439-88-5</a><span class="editoronly" style="display:none;"></span>
</p>
</td></tr>
<tr>
<td><a href="EG-Nummer" title="EG-Nummer">EG-Nummer</a>
</td>
<td>231-095-9
</td></tr>
<tr>
<td><a href="Europ%C3%A4ische_Chemikalienagentur" title="Europäische Chemikalienagentur">ECHA</a>-InfoCard
</td>
<td><a rel="nofollow" class="external text" href="https://www.echa.europa.eu/de/substance-information/-/substanceinfo/100.028.269">100.028.269</a>
</td></tr>


<tr>
<td>Massenanteil an der <a href="Erdh%C3%BClle" title="Erdhülle">Erdhülle</a>
</td>
<td style="white-space:nowrap;">0,001&nbsp;ppm<sup id="cite_ref-Harry_Binder_1-0" class="reference"><a href="#cite_note-Harry_Binder-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<th colspan="2" style="background:LightCoral; color:#202122;">Atomar<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</th></tr>
<tr>
<td><a href="Atommasse" title="Atommasse">Atommasse</a>
</td>
<td style="white-space:nowrap;">192,217(2)<sup id="cite_ref-CIAAW_3-0" class="reference"><a href="#cite_note-CIAAW-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> <a href="Atomare_Masseneinheit" title="Atomare Masseneinheit">u</a>
</td></tr>
<tr>
<td><a href="Atomradius" title="Atomradius">Atomradius</a> (berechnet)
</td>
<td style="white-space:nowrap;">135 (180) <a href="Pikometer" class="mw-redirect" title="Pikometer">pm</a>
</td></tr>
<tr>
<td><a href="Kovalenter_Radius" title="Kovalenter Radius">Kovalenter Radius</a>
</td>
<td style="white-space:nowrap;">141 pm
</td></tr>


<tr>
<td><a href="Elektronenkonfiguration" title="Elektronenkonfiguration">Elektronenkonfiguration</a>
</td>
<td style="white-space:nowrap;">[<a href="Xenon" title="Xenon">Xe</a>] 4<a href="F-Orbital" class="mw-redirect" title="F-Orbital">f</a><sup>14</sup> 5<a href="D-Orbital" class="mw-redirect" title="D-Orbital">d</a><sup>7</sup> 6<a href="S-Orbital" class="mw-redirect" title="S-Orbital">s</a><sup>2</sup>
</td></tr>
<tr>
<td>1. <a href="Ionisierungsenergie" title="Ionisierungsenergie">Ionisierungsenergie</a>
</td>
<td style="white-space:nowrap;"><span style="white-space:nowrap"><style data-mw-deduplicate="TemplateStyles:r198372224">
/* start https://de.wikipedia.org/ */


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/* end https://de.wikipedia.org/ */
</style>8<span class="numericFormat-dec"><span>.</span></span>96702(22) <a href="Elektronenvolt" title="Elektronenvolt">eV</a><sup id="cite_ref-NIST-ASD-iridium_4-0" class="reference"><a href="#cite_note-NIST-ASD-iridium-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></span> ≈ <span style="white-space:nowrap">865<span class="numericFormat-dec"><span>.</span></span>19 <a href="Joule" title="Joule">kJ</a>/<a href="Mol" title="Mol">mol</a><sup id="cite_ref-Webelements-iridium_5-0" class="reference"><a href="#cite_note-Webelements-iridium-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></span>
</td></tr>
<tr>
<td>2. Ionisierungsenergie
</td>
<td style="white-space:nowrap;"><span style="white-space:nowrap">17<span class="numericFormat-dec"><span>.</span></span>0(3) eV<sup id="cite_ref-NIST-ASD-iridium_4-1" class="reference"><a href="#cite_note-NIST-ASD-iridium-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></span> ≈ <span style="white-space:nowrap"><span class="numericFormat-1000">1</span>640 kJ/mol<sup id="cite_ref-Webelements-iridium_5-1" class="reference"><a href="#cite_note-Webelements-iridium-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></span>
</td></tr>
<tr>
<td>3. Ionisierungsenergie
</td>
<td style="white-space:nowrap;"><span style="white-space:nowrap">28<span class="numericFormat-dec"><span>.</span></span>0(1,6) eV<sup id="cite_ref-NIST-ASD-iridium_4-2" class="reference"><a href="#cite_note-NIST-ASD-iridium-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></span> ≈ <span style="white-space:nowrap"><span class="numericFormat-1000">2</span>700 kJ/mol<sup id="cite_ref-Webelements-iridium_5-2" class="reference"><a href="#cite_note-Webelements-iridium-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></span>
</td></tr>
<tr>
<td>4. Ionisierungsenergie
</td>
<td style="white-space:nowrap;"><span style="white-space:nowrap">40<span class="numericFormat-dec"><span>.</span></span>0(1,7) eV<sup id="cite_ref-NIST-ASD-iridium_4-3" class="reference"><a href="#cite_note-NIST-ASD-iridium-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></span> ≈ <span style="white-space:nowrap"><span class="numericFormat-1000">3</span>860 kJ/mol<sup id="cite_ref-Webelements-iridium_5-3" class="reference"><a href="#cite_note-Webelements-iridium-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></span>
</td></tr>
<tr>
<td>5. Ionisierungsenergie
</td>
<td style="white-space:nowrap;"><span style="white-space:nowrap">57<span class="numericFormat-dec"><span>.</span></span>0(1,9) eV<sup id="cite_ref-NIST-ASD-iridium_4-4" class="reference"><a href="#cite_note-NIST-ASD-iridium-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></span> ≈ <span style="white-space:nowrap"><span class="numericFormat-1000">5</span>500 kJ/mol<sup id="cite_ref-Webelements-iridium_5-4" class="reference"><a href="#cite_note-Webelements-iridium-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></span>
</td></tr>




<tr>
<th colspan="2" style="background:LightCoral; color:#202122;">Physikalisch<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</th></tr>
<tr>
<td><a href="Aggregatzustand" title="Aggregatzustand">Aggregatzustand</a>
</td>
<td>fest
</td></tr>


<tr>
<td><a href="Kristallstruktur" title="Kristallstruktur">Kristallstruktur</a>
</td>
<td style="white-space:nowrap;">kubisch flächenzentriert
</td></tr>
<tr>
<td><a href="Dichte" title="Dichte">Dichte</a>
</td>
<td style="white-space:nowrap;">22,56 g/cm<sup>3</sup><sup id="cite_ref-PlatRev_6-0" class="reference"><a href="#cite_note-PlatRev-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="H%C3%A4rte#Mohs" title="Härte">Mohshärte</a>
</td>
<td style="white-space:nowrap;">6,5
</td></tr>
<tr>
<td><a href="Magnetismus" title="Magnetismus">Magnetismus</a>
</td>
<td style="white-space:nowrap;"><a href="Paramagnetismus" title="Paramagnetismus">paramagnetisch</a> (<a href="Magnetische_Suszeptibilit%C3%A4t" title="Magnetische Suszeptibilität"><i>χ<sub>m</sub></i></a> = 3,8 · 10<sup>−5</sup>)<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Schmelzpunkt" title="Schmelzpunkt">Schmelzpunkt</a>
</td>
<td style="white-space:nowrap;">2739 <a href="Kelvin" title="Kelvin">K</a> (2466 °C)
</td></tr>
<tr>
<td><a href="Siedepunkt" title="Siedepunkt">Siedepunkt</a>
</td>
<td style="white-space:nowrap;">4403 K<sup id="cite_ref-Zhang_8-0" class="reference"><a href="#cite_note-Zhang-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> (4130 °C)
</td></tr>


<tr>
<td><a href="Molares_Volumen" title="Molares Volumen">Molares Volumen</a>
</td>
<td style="white-space:nowrap;">8,52 · 10<sup>−6</sup> m<sup>3</sup>·mol<sup>−1</sup>
</td></tr>
<tr>
<td><a href="Verdampfungsenthalpie" title="Verdampfungsenthalpie">Verdampfungsenthalpie</a>
</td>
<td style="white-space:nowrap;">564 kJ/mol<sup id="cite_ref-Zhang_8-1" class="reference"><a href="#cite_note-Zhang-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Schmelzenthalpie" title="Schmelzenthalpie">Schmelzenthalpie</a>
</td>
<td style="white-space:nowrap;">26 kJ·mol<sup>−1</sup>
</td></tr>


<tr>
<td><a href="Schallgeschwindigkeit" title="Schallgeschwindigkeit">Schallgeschwindigkeit</a>
</td>
<td style="white-space:nowrap;">4825 m·s<sup>−1</sup>
</td></tr>




<tr>
<td><a href="Elektrische_Leitf%C3%A4higkeit" title="Elektrische Leitfähigkeit">Elektrische Leitfähigkeit</a>
</td>
<td style="white-space:nowrap;">19,7 · 10<sup>6</sup> <a href="Siemens_(Einheit)" title="Siemens (Einheit)">S</a>·m<sup>−1</sup>
</td></tr>
<tr>
<td><a href="W%C3%A4rmeleitf%C3%A4higkeit" title="Wärmeleitfähigkeit">Wärmeleitfähigkeit</a>
</td>
<td style="white-space:nowrap;">150 <a href="Watt_(Einheit)" title="Watt (Einheit)">W</a>·m<sup>−1</sup>·K<sup>−1</sup>
</td></tr>
<tr>
<th colspan="2" style="background:LightCoral; color:#202122;">Chemisch<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</th></tr>
<tr>
<td><a href="Oxidationszahl" title="Oxidationszahl">Oxidationszustände</a>
</td>
<td style="white-space:nowrap;">−3, −1, ±0, +1, +2, <b>+3</b>, <b>+4</b>, +5, +6, +8, +9<sup id="cite_ref-IrIX_9-0" class="reference"><a href="#cite_note-IrIX-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Elektrodenpotential#Normalpotential" title="Elektrodenpotential">Normalpotential</a>
</td>
<td>1,156 <a href="Volt" title="Volt">V</a> (Ir<sup>3+</sup> + 3 e<sup>−</sup> → Ir)
</td></tr>
<tr>
<td><a href="Elektronegativit%C3%A4t" title="Elektronegativität">Elektronegativität</a>
</td>
<td>2,20 (<a href="Elektronegativit%C3%A4t#Pauling-Skala" title="Elektronegativität">Pauling-Skala</a>)
</td></tr>
<tr>
<th colspan="2" style="background:LightCoral; color:#202122;">Isotope
</th></tr>
<tr>
<td colspan="2" style="padding:0;">
<table class="wikitable center darkmode-hintergrundfarbe-passiv" style="background:WhiteSmoke; color:#202122; border:hidden; margin:0;">

<tbody><tr>
<td><a href="Isotop" title="Isotop">Isotop</a>
</td>
<td><a href="Isotopenverh%C3%A4ltnis" title="Isotopenverhältnis">NH</a>
</td>
<td><a href="Halbwertszeit" title="Halbwertszeit">t<sub>1/2</sub></a>
</td>
<td><a href="Radioaktivit%C3%A4t#Zerfallsarten" title="Radioaktivität">ZA</a>
</td>
<td><a href="Zerfallsenergie" title="Zerfallsenergie">ZE</a> (M<a href="Elektronenvolt" title="Elektronenvolt">eV</a>)
</td>
<td><a href="Zerfallsprodukt_(Radioaktivit%C3%A4t)" class="mw-redirect" title="Zerfallsprodukt (Radioaktivität)">ZP</a>
</td></tr>
<tr>
<td style="nowrap"><sup>189</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap"><a href="Radionuklid#Künstliche_Radionuklide" title="Radionuklid">{syn.}</a>
</td>
<td>13,2 <a href="Tag" title="Tag">d</a>
</td>
<td><a href="Elektroneneinfang" title="Elektroneneinfang">ε</a>
</td>
<td>0,532
</td>
<td><a href="Osmium" title="Osmium"><sup>189</sup>Os</a>
</td></tr>
<tr>
<td style="nowrap"><sup>190</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap"><a href="Radionuklid#Künstliche_Radionuklide" title="Radionuklid">{syn.}</a>
</td>
<td>11,78 <a href="Tag" title="Tag">d</a>
</td>
<td><a href="Elektroneneinfang" title="Elektroneneinfang">ε</a>
</td>
<td>2,000
</td>
<td><a href="Osmium" title="Osmium"><sup>190</sup>Os</a>
</td></tr>
<tr>
<td style="nowrap"><sup>191</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap">37,3&nbsp;%
</td>
<td colspan="4"><a href="Radioaktivit%C3%A4t#Stabilität" title="Radioaktivität">Stabil</a>
</td></tr>
<tr>
<td rowspan="2" style="nowrap"><sup>192</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td rowspan="2" style="nowrap"><a href="Radionuklid#Künstliche_Radionuklide" title="Radionuklid">{syn.}</a>
</td>
<td rowspan="2">73,830 <a href="Tag" title="Tag">d</a>
</td>
<td><a href="Betazerfall" title="Betazerfall">β<sup>−</sup></a>
</td>
<td>1,460
</td>
<td><a href="Platin" title="Platin"><sup>192</sup>Pt</a>
</td></tr>
<tr>
<td><a href="Elektroneneinfang" title="Elektroneneinfang">ε</a>
</td>
<td>1,046
</td>
<td><a href="Osmium" title="Osmium"><sup>192</sup>Os</a>
</td></tr>
<tr>
<td style="nowrap"><sup>192<a href="Isomer_(Kernphysik)" title="Isomer (Kernphysik)">m</a></sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap"><a href="Radionuklid#Künstliche_Radionuklide" title="Radionuklid">{syn.}</a>
</td>
<td>241 <a href="Jahr" title="Jahr">a</a>
</td>
<td><a href="Isomerie-%C3%9Cbergang" class="mw-redirect" title="Isomerie-Übergang">IT</a>
</td>
<td>0,155
</td>
<td><sup>192</sup>Ir
</td></tr>
<tr>
<td style="nowrap"><sup>193</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap"><b>62,7</b>&nbsp;%
</td>
<td colspan="4"><a href="Radioaktivit%C3%A4t#Stabilität" title="Radioaktivität">Stabil</a>
</td></tr>
<tr>
<td style="nowrap"><sup>194</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap"><a href="Radionuklid#Künstliche_Radionuklide" title="Radionuklid">{syn.}</a>
</td>
<td>19,15 <a href="Stunde" title="Stunde">h</a>
</td>
<td><a href="Betazerfall" title="Betazerfall">β<sup>−</sup></a>
</td>
<td>2,247
</td>
<td><a href="Platin" title="Platin"><sup>194</sup>Pt</a>
</td></tr>
<tr>
<td style="nowrap"><sup>195</sup>Ir<div class="editoronly" style="display:none;"></div>
</td>
<td style="nowrap"><a href="Radionuklid#Künstliche_Radionuklide" title="Radionuklid">{syn.}</a>
</td>
<td>2,5 <a href="Stunde" title="Stunde">h</a>
</td>
<td><a href="Betazerfall" title="Betazerfall">β<sup>−</sup></a>
</td>
<td>1,120
</td>
<td><a href="Platin" title="Platin"><sup>195</sup>Pt</a>
</td></tr></tbody></table>
</td></tr>
<tr>
<th colspan="2" class="darkmode-hintergrundfarbe-passiv" style="background:WhiteSmoke; color:#202122;">Weitere Isotope siehe <a href="Liste_der_Isotope/Ordnungszahl_71_bis_Ordnungszahl_80#77_Iridium" title="Liste der Isotope/Ordnungszahl 71 bis Ordnungszahl 80">Liste der Isotope</a>
</th></tr>
<tr>
<th colspan="2" style="background:LightCoral; text-align:center; color:#202122;"><a href="Kernspinresonanz" title="Kernspinresonanz">NMR</a>-Eigenschaften
</th></tr>
<tr>
<td colspan="2" style="padding:0;">
<table class="wikitable" style="margin:0; width:100%;">

<tbody><tr class="hintergrundfarbe1">
<th>
</th>
<th><a href="Kernspin" title="Kernspin">Kernspin</a>
</th>
<th><a href="Gyromagnetisches_Verh%C3%A4ltnis" title="Gyromagnetisches Verhältnis"><i>γ</i></a> in<br><a href="Radiant_(Einheit)" title="Radiant (Einheit)">rad</a>·<a href="Tesla_(Einheit)" title="Tesla (Einheit)">T</a><sup>−1</sup>·<a href="Sekunde" title="Sekunde">s</a><sup>−1</sup>
</th>
<th><a href="Kernspinresonanzspektroskopie#Empfindlichkeit_der_NMR-Spektroskopie" title="Kernspinresonanzspektroskopie"><i>E</i><sub>r</sub>&nbsp;(<sup>1</sup>H)</a>
</th>
<th><a href="Larmorfrequenz" class="mw-redirect" title="Larmorfrequenz"><i>f</i><sub>L</sub></a> bei<br><i>B</i> = 4,7 <a href="Tesla_(Einheit)" title="Tesla (Einheit)">T</a><br>in <a href="Hertz_(Einheit)" title="Hertz (Einheit)">MHz</a>
</th></tr>
<tr class="hintergrundfarbe1">
<td style="text-align:center;"><b><sup>191</sup>Ir</b>
</td>
<td style="white-space:nowrap; text-align:center;">3/2
</td>
<td style="white-space:nowrap;">4,812 · 10<sup>6</sup>
</td>
<td style="white-space:nowrap;">1,09 · 10<sup>−5</sup>
</td>
<td style="white-space:nowrap;">1,72
</td></tr>
<tr>
<td style="text-align:center;"><b><sup>193</sup>Ir</b>
</td>
<td style="white-space:nowrap; text-align:center;">3/2
</td>
<td style="white-space:nowrap;">5,227 · 10<sup>6</sup>
</td>
<td style="white-space:nowrap;">2,34 · 10<sup>−5</sup>
</td>
<td style="white-space:nowrap;">1,87
</td></tr>



</tbody></table><span class="editoronly" style="display:none;"></span>
</td></tr>
<tr>
<th colspan="2" style="background:LightCoral; color:#202122;">Sicherheitshinweise
</th></tr>


<tr>
<td colspan="2">
<table cellspacing="0" cellpadding="2" style="width:100%;">


<tbody><tr>
<td colspan="2" style="text-align:center"><b><a href="Global_harmonisiertes_System_zur_Einstufung_und_Kennzeichnung_von_Chemikalien" title="Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemikalien">GHS-Gefahrstoffkennzeichnung</a></b><sup id="cite_ref-GESTIS_10-0" class="reference"><a href="#cite_note-GESTIS-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>
<p>Pulver
</p>
<table class="hintergrundfarbe-neutral" style="text-align:center; margin-left:auto; margin-right:auto; display:flex; justify-content:center;">

<tbody><tr>
<td><span typeof="mw:File"><a href="Global_harmonisiertes_System_zur_Einstufung_und_Kennzeichnung_von_Chemikalien#Übersicht:_EU-Gefahrensymbole,_UN/GHS-Gefahrenpiktogramme,_UN/ADR-Gefahrensymbole" title="02 – Leicht-/Hochentzündlich"></a></span>
</td>
<td><span typeof="mw:File"><a href="Global_harmonisiertes_System_zur_Einstufung_und_Kennzeichnung_von_Chemikalien#Übersicht:_EU-Gefahrensymbole,_UN/GHS-Gefahrenpiktogramme,_UN/ADR-Gefahrensymbole" title="07 – Achtung"></a></span>
</td></tr></tbody></table>
<p><b>Gefahr</b>
</p>
</td></tr>
<tr>
<td rowspan="2" width="33%" style="border-top:1px #A7A7A7 dashed; border-right:1px #A7A7A7 dashed;"><a href="H-_und_P-S%C3%A4tze" title="H- und P-Sätze">H- und P-Sätze</a>
</td>
<td style="border-top:1px #A7A7A7 dashed;">H: <span title="Untervorlage eingebunden: H-Sätze"></span><a href="H-_und_P-S%C3%A4tze#H-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Entzündbarer Feststoff.">228</span></span></a>​‐​<a href="H-_und_P-S%C3%A4tze#H-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Verursacht schwere Augenreizung.">319</span></span></a>
</td></tr>



<tr>
<td style="border-top:1px #A7A7A7 dashed;">P: <span title="Untervorlage eingebunden: P-Sätze"></span><a href="H-_und_P-S%C3%A4tze#P-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellen fernhalten. Nicht rauchen.
(Geänderter Text seit Inkraftreten der „12. Anpassung an den Technischen Fortschritt“ am 17. Oktober 2020)">210</span></span></a><sup id="cite_ref-GESTIS_10-1" class="reference"><a href="#cite_note-GESTIS-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>
</td></tr>
</tbody></table>
</td></tr>






<tr>
<td colspan="2" style="background:LightCoral; line-height:1.2em; text-align:center; color:#202122; font-size:smaller;">Wenn nicht anders vermerkt, gelten die angegebenen Daten bei <a href="Standardbedingungen" title="Standardbedingungen">Standardbedingungen</a>.
</td></tr></tbody></table> <p><span class="editoronly" style="display:none;"></span>
</p><p><b>Iridium</b> ist ein <a href="Chemisches_Element" title="Chemisches Element">chemisches Element</a> mit dem Symbol Ir und der <a href="Ordnungszahl" title="Ordnungszahl">Ordnungszahl</a> 77. Es zählt zu den <a href="%C3%9Cbergangsmetalle" title="Übergangsmetalle">Übergangsmetallen</a>, im <a href="Periodensystem" title="Periodensystem">Periodensystem</a> steht es in der Gruppe 9 (in der älteren Zählung Teil der 8. <a href="Nebengruppe" title="Nebengruppe">Nebengruppe</a>) oder <a href="Cobaltgruppe" title="Cobaltgruppe">Cobaltgruppe</a>. Das sehr schwere, harte, spröde, silber-weiß glänzende <a href="Edelmetall" class="mw-redirect" title="Edelmetall">Edelmetall</a> aus der Gruppe der <a href="Platinmetalle" title="Platinmetalle">Platinmetalle</a> gilt als das korrosionsbeständigste Element. Iridium wird unterhalb 0,11 <a href="Kelvin" title="Kelvin">Kelvin</a> <a href="Supraleiter" title="Supraleiter">supraleitend</a>.
</p>

<div class="mw-heading mw-heading2"><h2 id="Geschichte">Geschichte</h2></div>
<p>Im Jahr 1800 kauften <a href="William_Hyde_Wollaston" title="William Hyde Wollaston">William Hyde Wollaston</a> und <a href="Smithson_Tennant" title="Smithson Tennant">Smithson Tennant</a> 5959&nbsp;<a href="Feinunze" title="Feinunze">Feinunzen</a> (etwa 185&nbsp;Kilogramm) Platinerz aus <a href="Kolumbien" title="Kolumbien">Kolumbien</a> und untersuchten es, indem sie das Erz in <a href="K%C3%B6nigswasser" title="Königswasser">Königswasser</a> lösten. Dabei löste sich ein Großteil des Erzes, es blieb aber auch ein unlöslicher Rückstand. Daraufhin teilten die beiden Chemiker die weitere Untersuchung. Wollaston untersuchte die löslichen Bestandteile und entdeckte darin 1803 die Elemente <a href="Rhodium" title="Rhodium">Rhodium</a> und <a href="Palladium" title="Palladium">Palladium</a>.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup>
</p><p>Tennant kümmerte sich dagegen um den in Königswasser unlöslichen Rückstand. Er erhitzte das schwarze Pulver mit <a href="Natriumhydroxid" title="Natriumhydroxid">Natriumhydroxid</a> und löste die erhaltene Masse in Wasser. Dabei bildete sich eine gelbe Lösung und es blieb ein Rückstand. Aus der gelben Lösung konnte Tennant das <a href="Osmium" title="Osmium">Osmium</a> isolieren. Den unlöslichen Rückstand löste er in <a href="Salzs%C3%A4ure" title="Salzsäure">Salzsäure</a>. Diese Lösung war zunächst blau, färbte sich dann grün und schließlich dunkelrot. Es gelang Tennant, aus dieser Lösung dunkelrote Kristalle zu erhalten, bei denen es sich wahrscheinlich um <a href="Dinatriumhexachloroiridat" title="Dinatriumhexachloroiridat">Dinatriumhexachloroiridat</a> handelte. Als er die Kristalle erhitzte, bildete sich ein weißes, metallisches Pulver, das er nicht schmelzen konnte und mit Metallen wie <a href="Blei" title="Blei">Blei</a> oder <a href="Kupfer" title="Kupfer">Kupfer</a> <a href="Legierung" title="Legierung">Legierungen</a> bildete. Auf Grund der Farbwechsel beim Lösen in Salzsäure nannte Tennant das Metall <i>Iridium</i>, <span style="font-style:normal;font-weight:normal"><a href="Altgriechische_Sprache" title="Altgriechische Sprache">altgriechisch</a></span> <span lang="grc-Grek" class="Grek" style="font-style:normal">ἰριοειδής</span> <i>irio-eides</i> „regenbogenartig“. Seine Entdeckungen stellte er 1804 vor.<sup id="cite_ref-Griffith2004_12-0" class="reference"><a href="#cite_note-Griffith2004-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup>
</p><p>Gleichzeitig mit Tennant führten auch die französischen Chemiker <a href="Louis-Nicolas_Vauquelin" title="Louis-Nicolas Vauquelin">Louis-Nicolas Vauquelin</a> und <a href="Antoine_Fran%C3%A7ois_de_Fourcroy" title="Antoine François de Fourcroy">Antoine-François de Fourcroy</a> ähnliche Experimente mit Platinerz durch und entdeckten darin ein neues Element, das sie <i>ptène</i> nannten. Dabei handelte es sich wahrscheinlich um eine Iridium-Osmium-Mischung. Dieser Name setzte sich jedoch nicht durch, Tennant gilt als Entdecker der beiden Elemente und seine Namen wurden beibehalten.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Griffith2004_12-1" class="reference"><a href="#cite_note-Griffith2004-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup>
</p><p>Die erste Anwendung von Iridium entwickelte 1834 John Isaac Hawkins. Auf Grund der großen Härte des Materials setzte er Iridium als Spitze für <a href="F%C3%BCllfederhalter" title="Füllfederhalter">Füllfederhalter</a> ein. 1892 konstruierte <a href="William_Chandler_Roberts-Austen" title="William Chandler Roberts-Austen">William Chandler Roberts-Austen</a> ein <a href="Thermoelement" title="Thermoelement">Thermoelement</a> aus Iridium und einer Iridium-Platin-Legierung, das auf Grund des hohen Schmelzpunktes des Elementes für Temperaturmessungen bis 2000 °C geeignet war.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup>
</p><p>1889 legte das <a href="Internationales_B%C3%BCro_f%C3%BCr_Ma%C3%9F_und_Gewicht" title="Internationales Büro für Maß und Gewicht">Internationale Büro für Maß und Gewicht</a> fest, dass das <a href="Urmeter" title="Urmeter">Urmeter</a> und das <a href="Urkilogramm" class="mw-redirect" title="Urkilogramm">Urkilogramm</a> aus einer Legierung von 90&nbsp;% Platin und 10&nbsp;% Iridium bestehen sollen.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup>
</p><p>1958 konnte <a href="Rudolf_M%C3%B6%C3%9Fbauer" title="Rudolf Mößbauer">Rudolf Mößbauer</a> am Iridium-<a href="Isotop" title="Isotop">Isotop</a> <sup>191</sup>Ir erstmals den nach ihm benannten <a href="M%C3%B6%C3%9Fbauer-Effekt" title="Mößbauer-Effekt">Mößbauer-Effekt</a> nachweisen.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Vorkommen">Vorkommen</h2></div>

<p>Iridium zählt auf der Erde zu den seltensten Elementen, seine <a href="Liste_der_H%C3%A4ufigkeiten_chemischer_Elemente" title="Liste der Häufigkeiten chemischer Elemente">Häufigkeit</a> in der oberen <a href="Kontinentale_Erdkruste" title="Kontinentale Erdkruste">kontinentalen Erdkruste</a> beträgt nur etwa 0,022&nbsp;μg/kg (<a href="Ppb" class="mw-redirect" title="Ppb">ppb</a>). Es ist damit zusammen mit den anderen Platinmetallen Ruthenium, Rhodium und Osmium sowie dem Rhenium eines der seltensten Elemente in der Erdkruste. Dies liegt darin, dass Iridium ein stark <a href="Siderophil" class="mw-redirect" title="Siderophil">siderophiles</a> (eisenliebendes) Element ist und daher bei der Entstehung der Erde große Mengen Iridium in den <a href="Erdkern" title="Erdkern">Erdkern</a> gelangt ist. Der Gehalt des Erdkernes an Iridium wird auf etwa 2,6&nbsp;mg/kg geschätzt.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup>
</p><p>Iridium ist immer mit den anderen Platinmetallen <a href="Paragenese" title="Paragenese">vergesellschaftet</a>. Dabei gehört das Element zusammen mit <a href="Osmium" title="Osmium">Osmium</a> und <a href="Ruthenium" title="Ruthenium">Ruthenium</a> zur Iridium-Gruppe der Platinmetalle (IPGE). Diese wirken in <a href="Magma" title="Magma">Magmaschmelzen</a> im <a href="Erdmantel" title="Erdmantel">Erdmantel</a> als kompatible Elemente und werden daher bevorzugt in Mineralgitter eingebaut. Dadurch kommt es beim teilweisen Schmelzen von platinmetallreichen Gesteinen zu einer Entmischung der Elemente und zur Anreicherung von Iridium in bestimmten Erzen.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> Besonders <a href="Chromit" title="Chromit">Chromit</a> begünstigt die Anreicherung von Iridium. Daneben findet man auch in sulfidischen Eisen-Nickel-Erzen wie <a href="Pentlandit" title="Pentlandit">Pentlandit</a> hohe Gehalte an Iridium.<sup id="cite_ref-Barnes_20-0" class="reference"><a href="#cite_note-Barnes-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup>
</p><p>Die höchsten Gehalte an Iridium findet man im <a href="Merensky_Reef" title="Merensky Reef">Merensky Reef</a> des <a href="Bushveld-Komplex" title="Bushveld-Komplex">Bushveld-Komplexes</a> in Südafrika, <a href="Great_Dyke" title="Great Dyke">Great Dyke</a> in <a href="Simbabwe" title="Simbabwe">Simbabwe</a>, in den Nickel-Erzen von <a href="Norilsk" title="Norilsk">Norilsk</a> und <a href="Talnach" title="Talnach">Talnach</a> in Russland, dem <a href="Stillwater-Komplex" title="Stillwater-Komplex">Stillwater-Komplex</a> in <a href="Montana" title="Montana">Montana</a> (<a href="Vereinigte_Staaten" title="Vereinigte Staaten">Vereinigte Staaten</a>) sowie dem <a href="Sudbury-Becken" title="Sudbury-Becken">Sudbury-Becken</a> in <a href="Kanada" title="Kanada">Kanada</a>.<sup id="cite_ref-Barnes_20-1" class="reference"><a href="#cite_note-Barnes-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> Neben diesen primären Lagerstätten ist Iridium auch in <a href="Seife_(Geologie)" title="Seife (Geologie)">Seifenlagerstätten</a> enthalten, in denen das ausgewaschene Element durch Flüsse abgelagert und angereichert wurde. Diese findet man unter anderem im <a href="Departamento_del_Choc%C3%B3" title="Departamento del Chocó">Departamento del Chocó</a> in <a href="Kolumbien" title="Kolumbien">Kolumbien</a> und im <a href="Ural" title="Ural">Ural</a> in Russland.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup>
</p><p>Im Vergleich zur Erdkruste enthalten <a href="Meteorit" title="Meteorit">Meteoriten</a> hohe Gehalte an Iridium. So enthalten <a href="Eisenmeteorit" title="Eisenmeteorit">Eisenmeteoriten</a> durchschnittlich 2&nbsp;<a href="Ppm" class="mw-redirect mw-disambig" title="Ppm">ppm</a> Iridium<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> In <a href="CI-Chondrit" title="CI-Chondrit">CI-Chondriten</a> wurden durchschnittlich 462&nbsp;μg/kg an Iridium gefunden.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> Der hohe Gehalt von Meteoriten an Iridium konnte auch auf der Erde nachgewiesen werden. In der <a href="Iridium-Anomalie" title="Iridium-Anomalie">Iridium-Anomalie</a> konnten erhöhte Iridium-Gehalte in bestimmten <a href="Sedimentgestein" class="mw-redirect" title="Sedimentgestein">Sedimentgesteinen</a>, die vor etwa 66&nbsp;Millionen Jahren an der <a href="Kreide-Pal%C3%A4ogen-Grenze" title="Kreide-Paläogen-Grenze">Kreide-Paläogen-Grenze</a> entstanden waren, nachgewiesen werden. Als Auslöser hierfür gilt der Einschlag eines Himmelskörpers in den <a href="Chicxulub-Krater" title="Chicxulub-Krater">Chicxulub-Krater</a> zu dieser Zeit.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup>
</p><p>Es sind drei <a href="Legierung" title="Legierung">Legierungen</a> des Iridiums als <a href="Mineral" title="Mineral">Mineral</a> anerkannt. Dies sind zwei Legierungen mit Platinmetallen, einmal <a href="Gediegen" title="Gediegen">gediegenes</a> Iridium, das alle Iridium-Osmium-Ruthenium-Legierungen umfasst, die Iridium als überwiegendes Element und eine <a href="Kubische_Kristallstruktur" class="mw-redirect" title="Kubische Kristallstruktur">kubische Kristallstruktur</a> besitzen und zum anderen <a href="Rutheniridosmin" title="Rutheniridosmin">Rutheniridosmin</a>, das ebenfalls überwiegend Iridium, aber eine <a href="Hexagonales_Kristallsystem" title="Hexagonales Kristallsystem">hexagonale Kristallstruktur</a> besitzt.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> Dazu ist die Iridium-Eisen-Legierung <a href="Chengdeit" title="Chengdeit">Chengdeit</a> als Mineral anerkannt.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> Daneben sind noch einige sulfidische Iridiumminerale bekannt, von denen <a href="Irarsit" title="Irarsit">Irarsit</a> (Ir,Ru,Rh,Pt)AsS das häufigste ist. Insgesamt sind 2025 17 Iridium-Minerale anerkannt.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Eigenschaften">Eigenschaften</h2></div>


<div class="mw-heading mw-heading3"><h3 id="Physikalische_Eigenschaften">Physikalische Eigenschaften</h3></div>
<p>Wegen seiner <a href="H%C3%A4rte" title="Härte">Härte</a> und <a href="Spr%C3%B6digkeit" title="Sprödigkeit">Sprödigkeit</a> kann Iridium nur schwer bearbeitet werden. In der natürlich auftretenden Isotopenzusammensetzung ist Iridium nach <a href="Osmium" title="Osmium">Osmium</a> das zweitdichteste Element.
</p>
<div class="mw-heading mw-heading3"><h3 id="Chemische_Eigenschaften">Chemische Eigenschaften</h3></div>
<p>Bei Rotglut <a href="Oxidation" title="Oxidation">oxidiert</a> Iridium unvollständig zu schwarzem <a href="Iridium(IV)-oxid" title="Iridium(IV)-oxid">IrO<sub>2</sub></a>, das oberhalb 1140&nbsp;<a href="Grad_Celsius" title="Grad Celsius">°C</a> wieder zerfällt. Auch ist Iridium wie Osmium in der Hitze und vor allem bei höherem Sauerstoffgehalt als Oxid IrO<sub>3</sub> flüchtig. An kalten Stellen jedoch scheidet es sich im Gegensatz zum Osmium als Metall oder IrO<sub>2</sub> wieder ab. In Pulverform ist es ein entzündbarer Feststoff, der durch kurzzeitige Einwirkung einer Zündquelle leicht entzündet werden kann. Die Entzündungsgefahr ist umso größer, je feiner der Stoff verteilt ist. In kompakter Form ist es nicht brennbar.<sup id="cite_ref-GESTIS_10-2" class="reference"><a href="#cite_note-GESTIS-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> In <a href="Minerals%C3%A4uren" title="Mineralsäuren">Mineralsäuren</a>, auch in <a href="K%C3%B6nigswasser" title="Königswasser">Königswasser</a>, ist es beständig. In <a href="Chloride" title="Chloride">Chlorid</a>-Schmelzen wird es jedoch bei Gegenwart von <a href="Chlor" title="Chlor">Chlor</a> zu Doppelchloriden umgesetzt, z.&nbsp;B. Na<sub>2</sub>[IrCl<sub>6</sub>].
</p>
<div class="mw-heading mw-heading2"><h2 id="Isotope">Isotope</h2></div>
<p>Es gibt zwei natürliche Isotope von Iridium, 34 <a href="Radionuklid" title="Radionuklid">Radioisotope</a> und 21 <a href="Kernisomere" class="mw-redirect" title="Kernisomere">Kernisomere</a>, wovon das Kernisomer <sup>192m2</sup>Ir mit einer <a href="Halbwertszeit" title="Halbwertszeit">Halbwertszeit</a> von 241 Jahren das stabilste ist. Es zerfällt durch <a href="Innere_Konversion" title="Innere Konversion">innere Konversion</a> zu <sup>192</sup>Ir, das mit 73,831 Tagen Halbwertszeit das Isotop mit der längsten HWZ ist.<sup>192</sup>Ir zerfällt als <a href="Betastrahlung" title="Betastrahlung">Betastrahler</a> zum Platinisotop <sup>192m</sup>Pt, die meisten anderen zu <a href="Osmium" title="Osmium">Osmium</a>. Die restlichen Isotope und Kernisomere haben Halbwertszeiten zwischen 300&nbsp;µs bei <sup>165</sup>Ir und 11,78 Tagen bei <sup>190</sup>Ir.
</p><p><sup>192</sup>Ir eignet sich wegen seiner Gammastrahlung mit Energien zwischen 200 und 600&nbsp;keV (Kiloelektronenvolt) für die <a href="Durchstrahlungspr%C3%BCfung" title="Durchstrahlungsprüfung">Durchstrahlungsprüfung</a> von Bauteilen. Bei Werkstücken mit einer Wanddicke von über 20&nbsp;mm wird meistens auf dieses Isotop zurückgegriffen (normativ geregelt, siehe z. B. DIN EN ISO 5579).
</p><p>Für die zerstörungsfreie Werkstoffprüfung (ZfP) ist der Iridiumstrahler meistens in Form einer 2–3&nbsp;mm großen Tablette in einem Strahlerhalter eingeschweißt, und dieser ist in einem verschließbaren Typ-B-Arbeitsbehälter untergebracht, der zur Abschirmung der Gammastrahlung mit abgereichertem <a href="Uran" title="Uran">Uran</a> ausgekleidet ist.
</p><p>Arbeitsbehälter für Iridiumstrahler haben folgende Abmessungen: 20&nbsp;cm lang, 10&nbsp;cm breit und 15&nbsp;cm hoch. Das Gewicht beträgt auf Grund des Uranmantels je nach Aktivität etwa 13 bis 20&nbsp;kg.
</p><p><i>→ <a href="Liste_der_Isotope/Ordnungszahl_71_bis_Ordnungszahl_80#77_Iridium" title="Liste der Isotope/Ordnungszahl 71 bis Ordnungszahl 80">Liste der Iridium-Isotope</a></i>
</p>
<div class="mw-heading mw-heading2"><h2 id="Verwendung">Verwendung</h2></div>
<p>Iridium ist oft Bestandteil von <a href="Legierung" title="Legierung">Legierungen</a>, denen es Härte und/oder Sprödigkeit verleiht. Platin-Iridium-Legierungen setzt man bei Präzisionsmessungen, in der <a href="Medizin" title="Medizin">Medizin</a> und dem <a href="Maschinenbau" title="Maschinenbau">Maschinenbau</a> ein.
</p><p>Die Nachfrage nach Iridium hat sich in den letzten Jahren erhöht, da Iridium bei einigen aktuellen technologischen Entwicklungen eine wichtige Rolle spielt. So kommt Iridium als Katalysator bei der Gewinnung von <a href="Wasserstoff" title="Wasserstoff">Wasserstoff</a> durch PEM-Elektrolyse zum Einsatz sowie bei der Elektro-Chlorierung zur Aufbereitung von Ballastwasser großer Schiffe (seit 2024 verpflichtend) und der Herstellung von <a href="OLED" class="mw-redirect" title="OLED">OLED</a>-Displays.<sup id="cite_ref-dwn_29-0" class="reference"><a href="#cite_note-dwn-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> Der Preis von Iridium ist darum in den letzten Jahren stark gestiegen. Lag er 2017 mit 900&nbsp;US-$ pro <a href="Feinunze" title="Feinunze">Feinunze</a> noch leicht unter dem Preis von Platin, so war Iridium im Jahr 2020 mit 1600&nbsp;US-$ pro Feinunze schon doppelt so teuer wie dieses.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> 2021 kletterte der Preis auf 6200&nbsp;US-$<sup id="cite_ref-dwn_29-1" class="reference"><a href="#cite_note-dwn-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> empor und lag im Juni 2022 bei ca. 5000&nbsp;US-$ pro Feinunze.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup>
</p><p>Weitere Verwendung findet es:
</p>
<ul><li>als Bestandteil der Legierung des <a href="Kilogramm" title="Kilogramm">Ur-Kilogramms</a> sowie des dritten <a href="Urmeter" title="Urmeter">Ur-Meters</a>,</li>
<li>zur Umhüllung von <a href="Plutoniumdioxid" class="mw-redirect" title="Plutoniumdioxid">Plutoniumdioxid</a> in <a href="Isotopenbatterie" class="mw-redirect" title="Isotopenbatterie">Isotopenbatterien</a>,</li>
<li>in Form von Behältern und Tiegeln für Hochtemperaturanwendungen,</li>
<li>als elektrischer Kontakt,</li>
<li>in <a href="Schmuck" title="Schmuck">Schmuck</a> als <a href="Platin" title="Platin">Platin</a>-Iridium-Legierung (PtIr 800 und PtIr 900) für stark beanspruchte Teile (<a href="Ring_(Schmuck)" title="Ring (Schmuck)">Trauringe</a>, Krawattennadeln, Verschlüsse, Mechaniken und Federn),</li>
<li>bei <a href="Z%C3%BCndkerze" title="Zündkerze">Zündkerzen</a>-Elektroden,</li>
<li>in Schreibfedern, vorne an der Spitze für <a href="F%C3%BCllfederhalter" title="Füllfederhalter">Füllfederhalter</a> wird meist eine Os/Ir-<a href="Legierung" title="Legierung">Legierung</a> eingesetzt,</li>
<li>in Legierung mit Platin als Zerstäuberspitze in der <a href="Atomspektroskopie" title="Atomspektroskopie">Flammen-Atomabsorptionsspektrometrie</a>,</li>
<li>bei der Messung der <a href="Oberfl%C3%A4chenspannung" title="Oberflächenspannung">Oberflächenspannung</a> nach der Du-Noüy-Ringmethode, wo es in Legierung mit Platin wegen seiner optimalen Benetzbarkeit eingesetzt wird,</li>
<li>in <a href="Sputtern" title="Sputtern">Sputter-Targets</a> zur Erzeugung von elektronenableitenden Beschichtungen von elektrischen Nichtleitern in der hochauflösenden <a href="Rasterelektronenmikroskop" title="Rasterelektronenmikroskop">Rasterelektronenmikroskopie</a>,</li>
<li>als <a href="Ultraviolettstrahlung" title="Ultraviolettstrahlung">UV</a>-Schutzschicht auf hochwertigen <a href="Sonnenbrille" title="Sonnenbrille">Sonnenbrillen</a>,</li>
<li>in <a href="Dentallegierungen" class="mw-redirect" title="Dentallegierungen">Dentallegierungen</a>,</li>
<li>zunehmend als <a href="Katalysator" title="Katalysator">Katalysator</a> chemischer Reaktionen (industriell wichtiger Einsatz bei der <a href="Cativa-Prozess" title="Cativa-Prozess">Synthese der Essigsäure</a>),</li>
<li>wegen seiner hohen Dichte und seines hohen Schmelzpunktes als <a href="Target_(Physik)" title="Target (Physik)">Target</a> in der Kernphysik, beispielsweise zur <a href="Antiproton" title="Antiproton">Antiprotonenerzeugung</a> im <a href="CERN" title="CERN">CERN</a>.<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup></li>
<li>In den Farbstoffen von <a href="Organische_Leuchtdiode" title="Organische Leuchtdiode">organischen Leuchtdioden</a>, zur Erzeugung von <a href="Multiplizit%C3%A4t" title="Multiplizität">Singulett-Triplett-Übergängen</a></li>
<li>als Bestandteil eines <a href="Elektrolyseur" title="Elektrolyseur">Elektrolyseurs</a> (zur <a href="Wasserstoffherstellung" title="Wasserstoffherstellung">Erzeugung von Wasserstoff</a>)</li>
<li>In Elektrodenmaterial von Elektro-Chlorierungssystemen zur <a href="Ballastwasser" title="Ballastwasser">Ballastwasserbehandlung</a> von Schiffen, mit dem Schiffe über 400&nbsp;t bis 2024 verpflichtend ausgerüstet sein müssen.</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Sicherheitshinweise">Sicherheitshinweise</h2></div>
<p>Metallisches Iridium ist wegen seiner Beständigkeit ungiftig. Als Pulver oder Staub ist es leicht entzündlich, in kompakter Form nicht brennbar. Iridiumverbindungen müssen als toxisch eingestuft werden.
</p>
<div class="mw-heading mw-heading2"><h2 id="Verbindungen">Verbindungen</h2></div>
<p>Viele Iridiumsalze sind farbig: Mit <a href="Chlor" title="Chlor">Chlor</a> bildet es olivgrünes <a href="Iridium(III)-chlorid" title="Iridium(III)-chlorid">Iridium(III)-chlorid</a> oder dunkelblauschwarzes, nicht ganz definiertes <a href="Iridium(IV)-chlorid" title="Iridium(IV)-chlorid">Iridium(IV)-chlorid</a>. Mit <a href="Fluor" title="Fluor">Fluor</a> reagiert es zu gelbem, leichtflüchtigem <a href="Iridium(VI)-fluorid" title="Iridium(VI)-fluorid">Iridium(VI)-fluorid</a> beziehungsweise gelbgrünem <a href="Iridium(V)-fluorid" title="Iridium(V)-fluorid">Iridium(V)-fluorid</a>. Die für Iridium bereits vor Jahren vorhergesagte <a href="Oxidationsstufe" class="mw-redirect" title="Oxidationsstufe">Oxidationsstufe</a> +IX konnte 2014 durch das synthetisierte [IrO<sub>4</sub>]<sup>+</sup> auch experimentell bestätigt werden.<sup id="cite_ref-IrIX_9-1" class="reference"><a href="#cite_note-IrIX-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Es handelt sich um das einzige Element, bei welchem diese Oxidationsstufe in einer Verbindung bekannt ist.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> Neben den Oxiden und Halogeniden des Iridiums sind zahlreiche oktaedrische, diamagnetische Iridium(III)-komplexe, wie Aminkomplexe und Chlorokomplexe bekannt. Die Reduktion von Iridium(III)-chlorid in Alkohol in Gegenwart von π-Akzeptorliganden führt zu quadratisch planaren Iridium(I)-Komplexen, von denen der <a href="Vaskas_Komplex" title="Vaskas Komplex">Vaskas Komplex</a> am besten untersucht ist. Durch Reduktion von Iridium(III)-chlorid mit <a href="Kohlenmonoxid" class="mw-redirect" title="Kohlenmonoxid">Kohlenmonoxid</a> erhält man die Iridiumcarbonyle wie das kanariengelbe [Ir<sub>4</sub>(CO)<sub>12</sub>] und das rote [Ir<sub>6</sub>(CO)<sub>16</sub>]. Iridiumkomplexe können in der homogenen Katalyse, insbesondere bei Hydrierungsreaktionen, eingesetzt werden.<sup id="cite_ref-spektrum.de_34-0" class="reference"><a href="#cite_note-spektrum.de-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Literatur">Literatur</h2></div>
<ul><li><a href="Arnold_F._Holleman" title="Arnold F. Holleman">A. F. Holleman</a>, <a href="Egon_Wiberg" title="Egon Wiberg">E. Wiberg</a>, <a href="Nils_Wiberg" title="Nils Wiberg">N. Wiberg</a>: <i><a href="Holleman-Wiberg_Lehrbuch_der_Anorganischen_Chemie" title="Holleman-Wiberg Lehrbuch der Anorganischen Chemie">Lehrbuch der Anorganischen Chemie</a>.</i> 102.&nbsp;Auflage. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1.<span class="editoronly" style="display:none;"></span></li>
<li><a href="Hans_Breuer_(Physiker)" title="Hans Breuer (Physiker)">Hans Breuer</a>: <i>dtv-Atlas Chemie.</i> Band 1, 9. Auflage. München 2000, ISBN 3-423-03217-0.</li>
<li><a href="M._Binnewies" class="mw-redirect" title="M. Binnewies">M. Binnewies</a>: <i>Allgemeine und Anorganische Chemie.</i> 1. Auflage. Heidelberg 2004, ISBN 3-8274-0208-5.</li>
<li><a href="N._N._Greenwood" class="mw-redirect" title="N. N. Greenwood">N. N. Greenwood</a>, <a href="A._Earnshaw" class="mw-redirect" title="A. Earnshaw">A. Earnshaw</a>: <i>Chemie der Elemente.</i> 1. Auflage. Weinheim 1988, ISBN 3-527-26169-9.</li>
<li><a href="Harry_H._Binder" title="Harry H. Binder">Harry H. Binder</a>: <i>Lexikon der chemischen Elemente – das Periodensystem in Fakten, Zahlen und Daten.</i> S. Hirzel Verlag, Stuttgart 1999, ISBN 3-7776-0736-3.</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<div class="sisterproject" style="margin:0.1em 0 0 0;"><span class="noviewer" style="display:inline-block; line-height:10px; min-width:1.6em; text-align:center;" aria-hidden="true" role="presentation"><span class="mw-default-size" typeof="mw:File"><span title="Wiktionary"></span></span></span><b><a href="https://de.wiktionary.org/wiki/Iridium" class="extiw external" title="wikt:Iridium">Wiktionary: Iridium</a></b>&nbsp;– Bedeutungserklärungen, Wortherkunft, Synonyme, Übersetzungen</div>
<div class="sisterproject" style="margin:0.1em 0 0 0;"><div class="noresize noviewer" style="display:inline-block; line-height:10px; min-width:1.6em; text-align:center;" aria-hidden="true" role="presentation"><span class="mw-default-size" typeof="mw:File"><span title="Commons"></span></span></div><b><span class=""><a class="external text" href="https://commons.wikimedia.org/wiki/Iridium?uselang=de"><span lang="en">Commons</span>: Iridium</a></span></b>&nbsp;– Album mit Bildern, Videos und Audiodateien</div>
<ul><li><a rel="nofollow" class="external text" href="http://www.pniok.de/ir.htm">Bild in der Sammlung von Heinrich Pniok</a></li>
<li><a href="https://www.mineralienatlas.de/lexikon/index.php/Iridium" class="extiw external" title="mineralienatlas:Iridium">Mineralienatlas:Iridium</a> (Wiki)</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-Harry_Binder-1"><span class="mw-cite-backlink"><a href="#cite_ref-Harry_Binder_1-0">↑</a></span> <span class="reference-text">Harry H. Binder: <i>Lexikon der chemischen Elemente.</i> S. Hirzel Verlag, Stuttgart 1999, ISBN 3-7776-0736-3.</span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Die Werte für die Eigenschaften (Infobox) sind, wenn nicht anders angegeben, aus <a rel="nofollow" class="external text" href="http://www.webelements.com/iridium/">www.webelements.com (Iridium)</a> entnommen.</span>
</li>
<li id="cite_note-CIAAW-3"><span class="mw-cite-backlink"><a href="#cite_ref-CIAAW_3-0">↑</a></span> <span class="reference-text">IUPAC Commission on Isotopic Abundances and Atomic Weights: <i>Standard Atomic Weights of 14 Chemical Elements Revised.</i> In: <i>Chemistry International.</i> 40, 2018, S.&nbsp;23, <a href="https://doi.org/10.1515/ci-2018-0409" class="extiw external" title="doi:10.1515/ci-2018-0409">doi:10.1515/ci-2018-0409</a>.</span>
</li>
<li id="cite_note-NIST-ASD-iridium-4"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-NIST-ASD-iridium_4-0">a</a></sup> <sup><a href="#cite_ref-NIST-ASD-iridium_4-1">b</a></sup> <sup><a href="#cite_ref-NIST-ASD-iridium_4-2">c</a></sup> <sup><a href="#cite_ref-NIST-ASD-iridium_4-3">d</a></sup> <sup><a href="#cite_ref-NIST-ASD-iridium_4-4">e</a></sup></span> <span class="reference-text">Eintrag zu <a rel="nofollow" class="external text" href="https://physics.nist.gov/cgi-bin/ASD/ie.pl?spectra=iridium&amp;units=1&amp;e_out=0&amp;unc_out=1&amp;at_num_out=1&amp;el_name_out=1&amp;ion_charge_out=1&amp;biblio=1"><i>iridium</i></a> in Kramida, A., Ralchenko, Yu., Reader, J. und NIST ASD Team (2019): <cite style="font-style:italic">NIST Atomic Spectra Database (ver. 5.7.1)</cite>. Hrsg.: <a href="National_Institute_of_Standards_and_Technology" title="National Institute of Standards and Technology">National Institute of Standards and Technology</a>, Gaithersburg, MD. <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.18434/T4W30F">10.18434/T4W30F</a></span> (<a rel="nofollow" class="external text" href="https://physics.nist.gov/asd">physics.nist.gov/asd</a>).<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Iridium&amp;rft.au=Kramida%2C+A.%2C+Ralchenko%2C+...&amp;rft.btitle=NIST+Atomic+Spectra+Database+%28ver.+5.7.1%29&amp;rft.doi=10.18434%2FT4W30F&amp;rft.genre=book" style="display:none">&nbsp;</span> Abgerufen am 13.&nbsp;Juni 2020.<span class="editoronly" style="display:none;"></span></span>
</li>
<li id="cite_note-Webelements-iridium-5"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Webelements-iridium_5-0">a</a></sup> <sup><a href="#cite_ref-Webelements-iridium_5-1">b</a></sup> <sup><a href="#cite_ref-Webelements-iridium_5-2">c</a></sup> <sup><a href="#cite_ref-Webelements-iridium_5-3">d</a></sup> <sup><a href="#cite_ref-Webelements-iridium_5-4">e</a></sup></span> <span class="reference-text">Eintrag zu <a rel="nofollow" class="external text" href="https://www.webelements.com/iridium/atoms.html"><i>iridium</i></a> bei <i>WebElements, <a rel="nofollow" class="external text" href="https://www.webelements.com">www.webelements.com</a></i>, abgerufen am 13.&nbsp;Juni 2020.<span class="editoronly" style="display:none;"></span></span>
</li>
<li id="cite_note-PlatRev-6"><span class="mw-cite-backlink"><a href="#cite_ref-PlatRev_6-0">↑</a></span> <span class="reference-text">J. W. Arblaster: <i>Densities of Osmium and Iridium.</i> In: <i>Platinum Metals Review.</i> 33, 1, 1989, S.&nbsp;14–16 (<style data-mw-deduplicate="TemplateStyles:r261891140">
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</style><span class="dewiki-iconexternal"><a class="external text" href="https://redirecter.toolforge.org/?url=http%3A%2F%2Fwww.platinummetalsreview.com%2Fpdf%2Fpmr-v33-i1-014-016.pdf">Originals</a></span> vom 7. Februar 2012 im <i><a href="Internet_Archive" title="Internet Archive">Internet Archive</a></i>) <small class="archiv-bot"><span class="wp_boppel noviewer" aria-hidden="true" role="presentation"><span typeof="mw:File"><span title="i"></span></span></span>&nbsp;<b>Info:</b> Der Archivlink wurde automatisch eingesetzt und noch nicht geprüft. Bitte prüfe Original- und Archivlink gemäß Anleitung und entferne dann diesen Hinweis.</small><span style="display:none"><a rel="nofollow" class="external text" href="http://IABotmemento.invalid/http://www.platinummetalsreview.com/pdf/pmr-v33-i1-014-016.pdf">@1</a></span><span style="display:none"><a rel="nofollow" class="external text" href="http://www.platinummetalsreview.com/pdf/pmr-v33-i1-014-016.pdf">@2</a></span><span style="display:none">Vorlage:Webachiv/IABot/www.platinummetalsreview.com</span>; PDF; 209&nbsp;kB).</span>
</li>
<li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text">Robert C. Weast (Hrsg.): <i>CRC Handbook of Chemistry and Physics</i>. CRC (Chemical Rubber Publishing Company), Boca Raton 1990, ISBN 0-8493-0470-9, S. E-129 bis E-145. Werte dort sind auf g/mol bezogen und in cgs-Einheiten angegeben. Der hier angegebene Wert ist der daraus berechnete maßeinheitslose SI-Wert.</span>
</li>
<li id="cite_note-Zhang-8"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Zhang_8-0">a</a></sup> <sup><a href="#cite_ref-Zhang_8-1">b</a></sup></span> <span class="reference-text">Yiming Zhang, Julian R. G. Evans, Shoufeng Yang: <i>Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks.</i> In: <i><a href="Journal_of_Chemical_%26_Engineering_Data" title="Journal of Chemical &amp; Engineering Data">Journal of Chemical &amp; Engineering Data</a>.</i> 56, 2011, S.&nbsp;328–337, <a href="https://doi.org/10.1021/je1011086" class="extiw external" title="doi:10.1021/je1011086">doi:10.1021/je1011086</a>.</span>
</li>
<li id="cite_note-IrIX-9"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-IrIX_9-0">a</a></sup> <sup><a href="#cite_ref-IrIX_9-1">b</a></sup></span> <span class="reference-text">Guanjun Wang, Mingfei Zhou, James T. Goettel, Gary G. Schrobilgen, Jing Su, Jun Li, Tobias Schlöder, Sebastian Riedel: <cite style="font-style:italic">Identification of an iridium-containing compound with a formal oxidation state of IX</cite>. In: <cite style="font-style:italic"><a href="Nature" title="Nature">Nature</a></cite>. <span style="white-space:nowrap">Band<span style="display:inline-block;width:.2em">&nbsp;</span>514</span>, 21.&nbsp;August 2014, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>475–477</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1038/nature13795">10.1038/nature13795</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Iridium&amp;rft.atitle=Identification+of+an+iridium-containing+compound+with+a+formal+oxidation+state+of+IX&amp;rft.au=Guanjun+Wang%2C+Mingfei+Zhou%2C+James+T.+Goettel%2C+...&amp;rft.btitle=Nature&amp;rft.date=2014-08-21&amp;rft.doi=10.1038%2Fnature13795&amp;rft.genre=book&amp;rft.pages=475-477&amp;rft.volume=514" style="display:none">&nbsp;</span></span>
</li>
<li id="cite_note-GESTIS-10"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-GESTIS_10-0">a</a></sup> <sup><a href="#cite_ref-GESTIS_10-1">b</a></sup> <sup><a href="#cite_ref-GESTIS_10-2">c</a></sup></span> <span class="reference-text">Eintrag zu <span style="font-style:italic;"><a rel="nofollow" class="external text" href="https://gestis.dguv.de/data?name=008460">Iridium, Pulver</a></span> in der <a href="GESTIS-Stoffdatenbank" title="GESTIS-Stoffdatenbank">GESTIS-Stoffdatenbank</a> des <a href="Institut_f%C3%BCr_Arbeitsschutz_der_Deutschen_Gesetzlichen_Unfallversicherung" title="Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung">IFA</a>, abgerufen am 12.&nbsp;April 2020.<small class="noscript"><span></span> (JavaScript erforderlich)</small></span>
</li>
<li id="cite_note-11"><span class="mw-cite-backlink"><a href="#cite_ref-11">↑</a></span> <span class="reference-text">W. P. Griffith: <i>Bicentenary of Four Platinum Group Metals Part I: Rhodium and Palladium – Events Surrounding their Discoveries.</i> In: <i>Platinum Metals Review.</i> 47, 4, 2003, S.&nbsp;175–183, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1595/003214003X474175183">10.1595/003214003X474175183</a></span>.</span>
</li>
<li id="cite_note-Griffith2004-12"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Griffith2004_12-0">a</a></sup> <sup><a href="#cite_ref-Griffith2004_12-1">b</a></sup></span> <span class="reference-text">W. P. Griffith: <i>Bicentenary of Four Platinum Group Metals Part II. Osmium and Iridium - Events Surrounding Their Discoveries.</i> In: <i>Platinum Metals Review.</i> 48, 4, 2004, S.&nbsp;182–189, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1595/003214004X484182189">10.1595/003214004X484182189</a></span>.</span>
</li>
<li id="cite_note-13"><span class="mw-cite-backlink"><a href="#cite_ref-13">↑</a></span> <span class="reference-text">Smithson Tennant: <i>On two metals, found in the black powder remaining after the solution of platina.</i> In: <i>Philosophical Transactions</i>. 94, 1804, S.&nbsp;411–418, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1098/rstl.1804.0018">10.1098/rstl.1804.0018</a></span>.</span>
</li>
<li id="cite_note-14"><span class="mw-cite-backlink"><a href="#cite_ref-14">↑</a></span> <span class="reference-text">Rolf Haubrichs, Pierre-Léonard Zaffalon: <i>Osmium vs. ‘Ptène’: The Naming of the Densest Metal.</i> In: <i>Johnson Matthey Technology Review.</i> Nr. 61, 2017, S.&nbsp;190-196, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1595/205651317x695631">10.1595/205651317x695631</a></span>.</span>
</li>
<li id="cite_note-15"><span class="mw-cite-backlink"><a href="#cite_ref-15">↑</a></span> <span class="reference-text">L. B. Hunt: <i>A History of Iridium.</i> In: <i>Platinum Metals Review.</i> 31, 1, 1987, S.&nbsp;32-41, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1595/003214087X3113241">10.1595/003214087X3113241</a></span>.</span>
</li>
<li id="cite_note-16"><span class="mw-cite-backlink"><a href="#cite_ref-16">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://www.bipm.org/en/committees/cg/cgpm/1-1889/resolution-1"><i>Resolution 1 of the 1st CGPM. Sanction of the international prototypes of the metre and the kilogram.</i></a> <a href="Internationales_B%C3%BCro_f%C3%BCr_Ma%C3%9F_und_Gewicht" title="Internationales Büro für Maß und Gewicht">Bureau International des Poids et Mesures</a>, 1889,<span class="Abrufdatum"> abgerufen am 25.&nbsp;August 2025</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AIridium&amp;rft.title=Resolution+1+of+the+1st+CGPM.+Sanction+of+the+international+prototypes+of+the+metre+and+the+kilogram&amp;rft.description=Resolution+1+of+the+1st+CGPM.+Sanction+of+the+international+prototypes+of+the+metre+and+the+kilogram&amp;rft.identifier=https%3A%2F%2Fwww.bipm.org%2Fen%2Fcommittees%2Fcg%2Fcgpm%2F1-1889%2Fresolution-1&amp;rft.publisher=%5B%5BInternationales+B%C3%BCro+f%C3%BCr+Ma%C3%9F+und+Gewicht%7CBureau+International+des+Poids+et+Mesures%5D%5D&amp;rft.date=1889&amp;rft.language=en">&nbsp;</span></span>
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<li id="cite_note-17"><span class="mw-cite-backlink"><a href="#cite_ref-17">↑</a></span> <span class="reference-text">Rudolf L. Mössbauer: <i>Kernresonanzfluoreszenz von Gammastrahlung in Ir<sup>191</sup>.</i> In: <i>Zeitschrift für Physik.</i> 151, 1958, S.&nbsp;124-143, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1007/BF01344210">10.1007/BF01344210</a></span>.</span>
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<li id="cite_note-18"><span class="mw-cite-backlink"><a href="#cite_ref-18">↑</a></span> <span class="reference-text">Thomas C. Meisel: <i>Iridium.</i> In: William White (Hrsg.): <i>Encyclopedia of Geochemistry.</i> Springer, 2018, ISBN 978-3-319-39311-7, S.&nbsp;743–745.</span>
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<li id="cite_note-19"><span class="mw-cite-backlink"><a href="#cite_ref-19">↑</a></span> <span class="reference-text">Igor S. Puchtel: Platinum Group Elements. In: William White (Hrsg.): <i>Encyclopedia of Geochemistry.</i> Springer, 2018, ISBN 978-3-319-39311-7, S.&nbsp;1236–1239.</span>
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<li id="cite_note-Barnes-20"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Barnes_20-0">a</a></sup> <sup><a href="#cite_ref-Barnes_20-1">b</a></sup></span> <span class="reference-text">Sarah‐Jane Barnes, Edward M. Ripley: <i>Highly Siderophile and Strongly Chalcophile Elements in Magmatic Ore Deposits.</i> In: <i>Reviews in Mineralogy and Geochemistry.</i> 2015, Band 81, Nummer 1, S.&nbsp;725–774 <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.2138/rmg.2016.81.12">10.2138/rmg.2016.81.12</a></span>.</span>
</li>
<li id="cite_note-21"><span class="mw-cite-backlink"><a href="#cite_ref-21">↑</a></span> <span class="reference-text">Martin Okrusch, Hartwig E. Frimmel: <i>Mineralogie.</i> 10. Auflage, Springer, 2021, ISBN 978-3-662-64064-7, S.&nbsp;420–426.</span>
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<li id="cite_note-22"><span class="mw-cite-backlink"><a href="#cite_ref-22">↑</a></span> <span class="reference-text">R. K. Upadhyay: <i>Geology and Mineral Resources.</i> Springer, 2025, ISBN 978-981-96-0598-9, S.&nbsp;538.</span>
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<li id="cite_note-23"><span class="mw-cite-backlink"><a href="#cite_ref-23">↑</a></span> <span class="reference-text">E. R. D. Scott: <i>Iron Meteorites: Composition, Age, and Origin.</i> In: <i>Oxford Research Encyclopedia of Planetary Science.</i> 2020, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1093/acrefore%2F9780190647926.013.206">10.1093/acrefore/9780190647926.013.206</a></span>.</span>
</li>
<li id="cite_note-24"><span class="mw-cite-backlink"><a href="#cite_ref-24">↑</a></span> <span class="reference-text">M. Fischer-Gödde, Harry Becker, Frank Wombacher: <i>Rhodium, gold and other highly siderophile element abundances in chondritic meteorites.</i> In: <i>Geochimica et Cosmochimica Acta.</i> 2009, Band 74, Nummer 1, S.&nbsp;356–379 <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1016/j.gca.2009.09.024">10.1016/j.gca.2009.09.024</a></span>.</span>
</li>
<li id="cite_note-25"><span class="mw-cite-backlink"><a href="#cite_ref-25">↑</a></span> <span class="reference-text">Paul R. Renne, Alan L. Deino, F.J. Hilgen, Klaudia F. Kuiper, Darren F. Mark, William S. Mitchell, Leah E. Morgan, Roland Mundil, Jan Smit: <i>Time Scales of Critical Events Around the Cretaceous-Paleogene Boundary.</i> In: <i><a href="Science" title="Science">Science</a>.</i> 2013, Band 339, Nummer 6120, S.&nbsp;684–687 <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1126/science.1230492">10.1126/science.1230492</a></span>.</span>
</li>
<li id="cite_note-26"><span class="mw-cite-backlink"><a href="#cite_ref-26">↑</a></span> <span class="reference-text">D. C. Harris, L. J. Cabri: <i>Nomenclature of platinum-group-element alloys: review and revision.</i> In: The <i>Canadian Mineralogist.</i> Band 29 (2), 1991, S.&nbsp;231-237 (<a rel="nofollow" class="external text" href="https://rruff.info/rruff_1.0/uploads/CM29_231.pdf">online</a>).</span>
</li>
<li id="cite_note-27"><span class="mw-cite-backlink"><a href="#cite_ref-27">↑</a></span> <span class="reference-text"><i>Chengdeite</i>. In: John W. Anthony, Richard A. Bideaux, Kenneth W. Bladh, Monte C. Nichols (Hrsg.): <i>Handbook of Mineralogy</i>, Mineralogical Society of America. 2001 (<a rel="nofollow" class="external text" href="https://www.handbookofmineralogy.org/pdfs/chengdeite.pdf">online</a>).</span>
</li>
<li id="cite_note-28"><span class="mw-cite-backlink"><a href="#cite_ref-28">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.mindat.org/element/Iridium"><i>The mineralogy of Iridium.</i></a> In: <i>mindat.org</i>, Hudson Institute of Mineralogy, abgerufen am 5. Oktober 2025.</span>
</li>
<li id="cite_note-dwn-29"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-dwn_29-0">a</a></sup> <sup><a href="#cite_ref-dwn_29-1">b</a></sup></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://deutsche-wirtschafts-nachrichten.de/511605/Iridium-Unbekanntes-Edelmetall-mit-glaenzender-Zukunft">Deutsche Wirtschaftsnachrichten, abgerufen am 10. Juni 2022</a></span>
</li>
<li id="cite_note-30"><span class="mw-cite-backlink"><a href="#cite_ref-30">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://pubs.usgs.gov/periodicals/mcs2022/mcs2022-platinum.pdf">U.S. Geological Survey, Mineral Commodity Summaries 2022: PLATINUM</a></span>
</li>
<li id="cite_note-31"><span class="mw-cite-backlink"><a href="#cite_ref-31">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.gold.de/kurse/iridiumpreis/">Internetquelle Gold.de, aktueller Iridiumkurs, abgerufen am 10. Juni 2022</a></span>
</li>
<li id="cite_note-32"><span class="mw-cite-backlink"><a href="#cite_ref-32">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://puhep1.princeton.edu/~kirkmcd/mumu/johnson/p-i-exam/pbartarg.htm">CERN Neutrino Factory Working Group Technical Note</a> princeton.edu, abgerufen am 1. Februar 2011.</span>
</li>
<li id="cite_note-33"><span class="mw-cite-backlink"><a href="#cite_ref-33">↑</a></span> <span class="reference-text">Steve Ritter: <i><a rel="nofollow" class="external text" href="http://2014.cenmag.org/iridium-dressed-to-the-nines/">Iridium Dressed To The Nines – Periodic Table: IrO<sub>4</sub><sup>+</sup> is the first molecule with an element in the +9 oxidation state</a>.</i> In: <i><a href="Chemical_%26_Engineering_News" title="Chemical &amp; Engineering News">Chemical &amp; Engineering News</a>.</i> 2014.</span>
</li>
<li id="cite_note-spektrum.de-34"><span class="mw-cite-backlink"><a href="#cite_ref-spektrum.de_34-0">↑</a></span> <span class="reference-text">Lexikon der Chemie: <a rel="nofollow" class="external text" href="http://www.spektrum.de/lexikon/chemie/iridiumverbindungen/4579">Iridiumverbindungen - Lexikon der Chemie</a>, abgerufen am 20. Februar 2018</span>
</li>
</ol>
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<div class="klappleiste mw-collapsible navileiste navigation-not-searchable center" role="navigation">
<div class="klappleiste-kopf"><a href="Periodensystem" title="Periodensystem">Periodensystem</a> der <a href="Chemisches_Element" title="Chemisches Element">Elemente</a></div>
<div class="klappleiste-inhalt mw-collapsible-content">
<table cellpadding="0" style="border-collapse:collapse; font-size:smaller; margin-top:2em; text-align:center; width:100%">
<tbody><tr>
<td style="width:3.125%; border:1px solid #ddd; background:#32cd32"><a href="Wasserstoff" title="Wasserstoff">H</a>
</td>
<td style="width:93.75%" colspan="30">
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#87cefa"><a href="Helium" title="Helium">He</a>
</td></tr>
<tr>
<td style="width:3.125%; border:1px solid #ddd; background:#ff4500"><a href="Lithium" title="Lithium">Li</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#ff8c00"><a href="Beryllium" title="Beryllium">Be</a>
</td>
<td colspan="24">
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Bor" title="Bor">B</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#32cd32"><a href="Kohlenstoff" title="Kohlenstoff">C</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#32cd32"><a href="Stickstoff" title="Stickstoff">N</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#32cd32"><a href="Sauerstoff" title="Sauerstoff">O</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f0e68c"><a href="Fluor" title="Fluor">F</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#87cefa"><a href="Neon" title="Neon">Ne</a>
</td></tr>
<tr>
<td style="width:3.125%; border:1px solid #ddd; background:#ff4500"><a href="Natrium" title="Natrium">Na</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#ff8c00"><a href="Magnesium" title="Magnesium">Mg</a>
</td>
<td colspan="24">
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Aluminium" title="Aluminium">Al</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Silicium" title="Silicium">Si</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#32cd32"><a href="Phosphor" title="Phosphor">P</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#32cd32"><a href="Schwefel" title="Schwefel">S</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f0e68c"><a href="Chlor" title="Chlor">Cl</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#87cefa"><a href="Argon" title="Argon">Ar</a>
</td></tr>
<tr>
<td style="width:3.125%; border:1px solid #ddd; background:#ff4500"><a href="Kalium" title="Kalium">K</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#ff8c00"><a href="Calcium" title="Calcium">Ca</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Scandium" title="Scandium">Sc</a>
</td>
<td colspan="14">
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Titan_(Element)" title="Titan (Element)">Ti</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Vanadium" title="Vanadium">V</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Chrom" title="Chrom">Cr</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Mangan" title="Mangan">Mn</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Eisen" title="Eisen">Fe</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Cobalt" title="Cobalt">Co</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Nickel" title="Nickel">Ni</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Kupfer" title="Kupfer">Cu</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Zink" title="Zink">Zn</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Gallium" title="Gallium">Ga</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Germanium" title="Germanium">Ge</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Arsen" title="Arsen">As</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Selen" title="Selen">Se</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f0e68c"><a href="Brom" title="Brom">Br</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#87cefa"><a href="Krypton" title="Krypton">Kr</a>
</td></tr>
<tr>
<td style="width:3.125%; border:1px solid #ddd; background:#ff4500"><a href="Rubidium" title="Rubidium">Rb</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#ff8c00"><a href="Strontium" title="Strontium">Sr</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Yttrium" title="Yttrium">Y</a>
</td>
<td colspan="14">
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Zirconium" title="Zirconium">Zr</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Niob" title="Niob">Nb</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Molybd%C3%A4n" title="Molybdän">Mo</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Technetium" title="Technetium">Tc</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Ruthenium" title="Ruthenium">Ru</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Rhodium" title="Rhodium">Rh</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Palladium" title="Palladium">Pd</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Silber" title="Silber">Ag</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Cadmium" title="Cadmium">Cd</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Indium" title="Indium">In</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Zinn" title="Zinn">Sn</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Antimon" title="Antimon">Sb</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#cd853f"><a href="Tellur" title="Tellur">Te</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f0e68c"><a href="Iod" title="Iod">I</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#87cefa"><a href="Xenon" title="Xenon">Xe</a>
</td></tr>
<tr>
<td style="width:3.125%; border:1px solid #ddd; background:#ff4500"><a href="Caesium" title="Caesium">Cs</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#ff8c00"><a href="Barium" title="Barium">Ba</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Lanthan" title="Lanthan">La</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Cer" title="Cer">Ce</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Praseodym" title="Praseodym">Pr</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Neodym" title="Neodym">Nd</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Promethium" title="Promethium">Pm</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Samarium" title="Samarium">Sm</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Europium" title="Europium">Eu</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Gadolinium" title="Gadolinium">Gd</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Terbium" title="Terbium">Tb</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Dysprosium" title="Dysprosium">Dy</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Holmium" title="Holmium">Ho</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Erbium" title="Erbium">Er</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Thulium" title="Thulium">Tm</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Ytterbium" title="Ytterbium">Yb</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dda0dd"><a href="Lutetium" title="Lutetium">Lu</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Hafnium" title="Hafnium">Hf</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Tantal" title="Tantal">Ta</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Wolfram" title="Wolfram">W</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Rhenium" title="Rhenium">Re</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Osmium" title="Osmium">Os</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a class="mw-selflink selflink">Ir</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Platin" title="Platin">Pt</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Gold" title="Gold">Au</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Quecksilber" title="Quecksilber">Hg</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Thallium" title="Thallium">Tl</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Blei" title="Blei">Pb</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Bismut" title="Bismut">Bi</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#a9a9a9"><a href="Polonium" title="Polonium">Po</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f0e68c"><a href="Astat" title="Astat">At</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#87cefa"><a href="Radon" title="Radon">Rn</a>
</td></tr>
<tr>
<td style="width:3.125%; border:1px solid #ddd; background:#ff4500"><a href="Francium" title="Francium">Fr</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#ff8c00"><a href="Radium" title="Radium">Ra</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Actinium" title="Actinium">Ac</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Thorium" title="Thorium">Th</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Protactinium" title="Protactinium">Pa</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Uran" title="Uran">U</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Neptunium" title="Neptunium">Np</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Plutonium" title="Plutonium">Pu</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Americium" title="Americium">Am</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Curium" title="Curium">Cm</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Berkelium" title="Berkelium">Bk</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Californium" title="Californium">Cf</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Einsteinium" title="Einsteinium">Es</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Fermium" title="Fermium">Fm</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Mendelevium" title="Mendelevium">Md</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Nobelium" title="Nobelium">No</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#da70d6"><a href="Lawrencium" title="Lawrencium">Lr</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Rutherfordium" title="Rutherfordium">Rf</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Dubnium" title="Dubnium">Db</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Seaborgium" title="Seaborgium">Sg</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Bohrium" title="Bohrium">Bh</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#f08080"><a href="Hassium" title="Hassium">Hs</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Meitnerium" title="Meitnerium">Mt</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Darmstadtium" title="Darmstadtium">Ds</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Roentgenium" title="Roentgenium">Rg</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Copernicium" title="Copernicium">Cn</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Nihonium" title="Nihonium">Nh</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Flerovium" title="Flerovium">Fl</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Moscovium" title="Moscovium">Mc</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Livermorium" title="Livermorium">Lv</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Tenness" title="Tenness">Ts</a>
</td>
<td style="width:3.125%; border:1px solid #ddd; background:#dcdcdc"><a href="Oganesson" title="Oganesson">Og</a>
</td></tr></tbody></table>
<table border="1" cellpadding="1" rules="all" style="border:1px solid #fff; border-collapse:collapse; font-size: smaller; margin-top:2em; text-align:center; width:100%">
<tbody><tr>
<td style="background:#ff4500" width="9.1%"><a href="Alkalimetalle" title="Alkalimetalle">Alkalimetalle</a>
</td>
<td style="background:#ff8c00" width="9.1%"><a href="Erdalkalimetalle" title="Erdalkalimetalle">Erdalkalimetalle</a>
</td>
<td style="background:#dda0dd" width="9.1%"><a href="Lanthanoide" title="Lanthanoide">Lanthanoide</a>
</td>
<td style="background:#da70d6" width="9.1%"><a href="Actinoide" title="Actinoide">Actinoide</a>
</td>
<td style="background:#f08080" width="9.1%"><a href="%C3%9Cbergangsmetalle" title="Übergangsmetalle">Übergangsmetalle</a>
</td>
<td style="background:#a9a9a9" width="9.1%"><a href="Metalle" title="Metalle">Metalle</a>
</td>
<td style="background:#cd853f" width="9.1%"><a href="Halbmetalle" title="Halbmetalle">Halbmetalle</a>
</td>
<td style="background:#32cd32" width="9.1%"><a href="Nichtmetalle" title="Nichtmetalle">Nichtmetalle</a>
</td>
<td style="background:#f0e68c" width="9.1%"><a href="Halogene" title="Halogene">Halogene</a>
</td>
<td style="background:#87cefa" width="9.1%"><a href="Edelgase" title="Edelgase">Edelgase</a>
</td>
<td style="background:#dcdcdc" width="9%">Chemie unbekannt
</td></tr></tbody></table>
</div></div>
<div class="hintergrundfarbe1 rahmenfarbe1 navigation-not-searchable normdaten-typ-s" style="border-style: solid; border-width: 1px; clear: left; margin-bottom:1em; margin-top:1em; padding: 0.25em; overflow: hidden; word-break: break-word; word-wrap: break-word;" id="normdaten">
<div style="display: table-cell; vertical-align: middle; width: 100%;">
<div>
Normdaten&nbsp;(Sachbegriff): <a href="Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a>: <span class="-print"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4162402-6">4162402-6</a></span> | <a href="Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a>: <span class="-print"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh85068067">sh85068067</a></span> | <a href="Web_NDL_Authorities" title="Web NDL Authorities">NDL</a>: <span class="-print"><a rel="nofollow" class="external text" href="https://id.ndl.go.jp/auth/ndlsh/00564222">00564222</a></span> </div>
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