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| name |
Beryllium |
| latin |
Beryllium |
| french |
Béryllium |
| german |
Beryllium |
| symbol |
Be |
| proton number |
4 |
| atomic weight |
9.012182 |
| Pauling electronegativity |
1.57 |
| electronic configuration |
[He] 2s2
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| melting point |
1560 K, 1287°C, 2348°F |
| boiling point |
2742 K, 2469°C, 4476°F |
| group |
2 |
| period |
2 |
| state (by 20°C) |
solid |
| oxidation states |
+2 |
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Discoverer
| Year of discovery |
Discoverer |
| 1798 |
Louis Nicolas Vauquelin (1763-1829) |
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Czech version