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name |
Iridium |
latin |
Iridium |
french |
Iridium |
german |
Iridium |
symbol |
Ir |
proton number |
77 |
atomic weight |
192.217 |
Pauling electronegativity |
2.2 |
electronic configuration |
[Xe] 4f145d76s2 >> show long |
melting point |
2739 K, 2466°C, 4471°F |
boiling point |
4701 K, 4428°C, 8002°F |
group |
9 |
period |
6 |
state (by 20°C) |
solid |
oxidation states |
+2, +3, +4, +6 |
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Discoverer
Year of discovery |
Discoverer |
1804 |
Smithson Tennant (1761-1815) |
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