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La
Lanthanum
#57 · Lanthanide
| I-Mass | 138.91 u |
| Uxinano | 6.145 g/cm³ |
| Uthuthu | 1193.0 K |
| Ukomisa | 3737.0 K |
| Electronegativity | 1.1 |
| Ionization energy | 538.1 kJ/mol |
| Atomic radius: | 187.0 pm |
| I-Block | f- iblock |
| Ilizwe (RT) | I-Solid |
| Qwalasela | [Xe] 5d1 6s2 |