Periodic Table of the Elements: Beryllium
Related article: Periodic Table of the Elements (table)Periodic Table of the Elements
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| 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. ..... Click the link for more information. | |
| Atomic Weight: | 9.01218 |
| Electron Configuration: | 2 · 2 |