Atomic number 102
Name Nobelium
Atomic mass 259
Electronic configuration [Rn] 5f14 7s2
Electronegativity 1.3
Atomic radius pm
Ion radius pm
Van der Waals radius pm
Ionization energy 642 kJ/mol
Electron affinity kJ/mol
Oxidation states 2, 3
Standard physical state -
Bonding type -
Melting point 1100 °C
Boiling point °C
Density g/cm³
Type actinoid
Year discovered 1957