28183232112
Category
Transition metal
Relative atomic mass
262.1038
Density
13.51
Melting point (°C)
1342
Boiling point (°C)
3100
Electronegativity (Pauling)
1.28
Half-life
1.2 d
Discovery year
1949
Discovered by
Electrons: 105
Protons: 105
Neutrons: 163
Decay chain