Number of Isotopes: 1
Electron Affinity (kJ/mol):  -241
First Ionization Energy (kJ/mol): 899.4
Second Ionization Energy (kJ/mol): 1757.1
Third Ionization Energy (kJ/mol): 14848.3
Electronegativity: 1.57
Polarizability (Å3): 5.6
Atomic Volume (cm3/mol): 4.9
Ionic Radius2- (pm): No data
Ionic Radius1- (pm): No data
Atomic Radius (pm): 112
Ionic Radius1+ (pm): No data
Ionic Radius2+ (pm): 59
Ionic Radius3+ (pm): No data
Common Oxidation Numbers: +2
Other Oxid. Numbers: