Periodic Table of the Elements: Beryllium

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Periodic Table of the Elements: Beryllium
Atomic Number:4
Atomic Symbol:Be
 Berylliumberyllium
[from beryl ], metallic chemical element; symbol Be; at. no. 4; at. wt. 9.01218; m.p. about 1,278°C;; b.p. 2,970°C; (estimated); sp. gr. 1.85 at 20°C;; valence +2.
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Atomic Weight:9.01218
Electron Configuration:2 · 2
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