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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
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| 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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Czech version