Be | Z = 4 | ◊ ◊ ◊ ◊ ◊ |
Beryllium | |
From the Sanskrit "beryllos", meaning "a blue-green spar" | ||||
(AM) Atomic Mass | 9.01218 amu | ♦ | ![]() |
+2 |
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2970  °C | ♦ | ![]() |
1278 °C |
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1.85 g/cm3 | ♦ | ![]() |
Hexagonal |
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1.5 | ♦ | ![]() |
0.9  Å |
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Solid | ♦ | (C) Heat Capacity | 1.825 J/g °C |
Electronic-Config | 1s2  2s2  | ♦ | ![]() |
899.43 kJ/mol |
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297 kJ/mol | ♦ | ![]() |
7.895 kJ/mol |
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1797 | ♦ | ![]() |
France |
(E°) Standard Potential | Be2+⇔ Be (-1.847 V) | |||
Stable isotopes |  9Be | |||
Discovered/Synthesized by | Louis-Nicholas Vauquelin | |||
Natural Source | The mineral/ore bertrandite | |||
Common Uses | Non-sparking copper alloy tools, aerospace, X-Ray windows | |||
Other Info | Gives emeralds their green color It is ideal for space telescope mirrors |
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