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Es
Einsteinium
#99 · Actinide
| Mass | 252.083 u |
| Density | 8.84 g/cm³ |
| Melting | 1133.0 K |
| Boiling | 1269.0 K |
| Electronegativity | 1.3 |
| Ionization Energy | 619.0 kJ/mol |
| Atomic Radius | 203.0 pm |
| Block | f-block |
| State (RT) | Solid |
| Config | [Rn] 5f11 7s2 |