28183232188
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
0.7 ms
Discovery year
1949
Discovered by
Electrons: 118
Protons: 118
Neutrons: 176
Decay chain