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ERBIUM
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Atomic Symbol |
Er |
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Atomic Weight |
167.26 |
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Atomic Number |
68 |
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Electron Configuration |
2-8-18-30-8-2 |
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Oxidation States |
+3
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State of Matter |
Solid heavy metal- brittle |
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Boiling Point |
2510 °C |
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Melting Point |
1522 °C |
HISTORY,
BACKGROUND & USES:
Discovered in 1843 by C.G. Mosander. Erbium is a metal with few uses. It is a grayish-silver color.
It can be used as an infra-red obsorbing glass and as an activator
in some phosphoescent materials.
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