Attribute | Nobelium × | Californium × |
---|---|---|
Standard state | Solid | Solid |
Electron configuration | [Rn]7s²5f¹⁴ | [Rn]7s²5f¹⁰ |
Atomic mass (u) | 259.101 | 251.07959 |
Electronegativity (pauling scale) | 1.3 | 1.3 |
Oxidation states |
|
|
Ionization energy (eV) | 6.65 | 6.3 |
1↑Atomic radius (van der waals) (pm) | - | 245 |
Melting point (K) | 1100 | 1173 |
Atomic number | 102 | 98 |
Group name | Actinide | Actinide |
Symbol | No | Cf |
Discovered (year) | 1957 | 1950 |