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Cf
Californium
#98 · Actinide
| Mass | 251.07959 u |
| Density | 15.1 g/cm³ |
| Melting | 1173.0 K |
| Boiling | 1743.0 K |
| Electronegativity | 1.3 |
| Ionization Energy | 608.0 kJ/mol |
| Atomic Radius | 169.0 pm |
| Block | f-block |
| State (RT) | Solid |
| Config | [Rn] 5f10 7s2 |