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RADIUM
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Atomic Symbol |
Ra |
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Atomic Weight |
(226.0254) |
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Atomic Number |
88 |
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Electron Configuration |
2-8-18-32-18-8-2 |
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Oxidation States |
+2
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State of Matter |
Solid- light metal |
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Boiling Point |
approx. 1737 °C |
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Melting Point |
approx. 700 °C |
HISTORY,
BACKGROUND & USES:
Discovered in 1898 by Pierre and Marie Curie and assistant
G. Bémont. Radium is used in cancer therapy and luminescent paint. Concentrated
radium glows in the dark and gives off heat. It has a silvery
white color.
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