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 |
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| name |
Lanthanum |
| latin |
Lanthanum |
| french |
Lanthane |
| german |
Lanthan |
| symbol |
La |
| proton number |
57 |
| atomic weight |
138.9055 |
| Pauling electronegativity |
1.1 |
| electronic configuration |
[Xe] 5d16s2
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| melting point |
1193 K, 920°C, 1688°F |
| boiling point |
3743 K, 3470°C, 6278°F |
| group |
3 |
| period |
6 |
| state (by 20°C) |
solid |
| oxidation states |
+3 |
|
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|
Discoverer
| Year of discovery |
Discoverer |
| 1839 |
Carl G. Mosander |
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Czech version