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BORON
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Atomic Symbol |
B |
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Atomic Weight |
10.811 |
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Atomic Number |
5 |
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Electron Configuration |
2-3 |
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Oxidation States |
+3
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State of Matter |
Solid non-metal |
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Boiling Point |
2550 ° |
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Melting Point |
2300 ° |
HISTORY,
BACKGROUND & USES:
Discovered in 1808 by Joseph Louis Gay-Lussac and Louis-Jacques
Thènard. Boron is relativally rare, and is never found free, it's always
found combined with oxygen in borates. The most important source
of it is borax, or sodium tetraborate, found in the desert regions
of California. Boric acid, another compound, is found in the volcanic
regions of Italy. Boron is very hard and brittle, and is found
in two allotropic forms, crystalline and amorphous. Boron is used
in flares to give off a green color, it's used as an igniter in
rockets, as filaments in aerospace structures, and in silicon
semiconductors to improve conductivity.
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