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IRIDIUM
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Atomic Symbol |
Ir |
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Atomic Weight |
192.22 |
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Atomic Number |
77 |
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Electron Configuration |
2-8-18-32-15-2 |
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Oxidation States |
+3, +4
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State of Matter |
Solid heavy metal- ductile |
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Boiling Point |
4527 °C |
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Melting Point |
2410 °C |
HISTORY,
BACKGROUND & USES:
Discovered in 1804 by Smithson Tennant. Very dense and rare, iridium has a silvery-white color. Its
main use is in the form of platinum alloys.
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