28183232132
Category
Transition metal
Relative atomic mass
269.1087
Density
13.51
Melting point (°C)
1342
Boiling point (°C)
3100
Electronegativity (Pauling)
1.28
Half-life
2.4 min
Discovery year
1949
Discovered by
Electrons: 107
Protons: 107
Neutrons: 163
Decay chain