2818323283
Category
Actinoid
Series
actinide
Relative atomic mass
262.1096
Density
13.51
Melting point (°C)
1342
Boiling point (°C)
3100
Electronegativity (Pauling)
1.28
Half-life
11 h
Discovery year
1949
Discovered by
Electrons: 103
Protons: 103
Neutrons: 163
Decay chain