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HELIUM
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Atomic Symbol |
He |
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Atomic Weight |
4.002602 |
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Atomic Number |
2 |
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Electron Configuration |
2 |
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Oxidation States |
0
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State of Matter |
gas |
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Boiling Point |
-268.9 °C |
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Melting Point |
-272.2 °C |
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Solubility |
ml./100 ml. water is 1.49 |
HISTORY,
BACKGROUND & USES:
Discovered in 1895 by Sir William Ramsay Helium is a Noble gas element that is obtained from natural gas deposits by liquefying all other constituents and collecting helium. The percentage obtained from these deposits may range from 1% to 2%.
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