Number of Isotopes: 1
Electron Affinity (kJ/mol): 52.868
First Ionization Energy (kJ/mol): 495.8
Second Ionization Energy (kJ/mol): 4562.4
Third Ionization Energy (kJ/mol): 6912.2
Electronegativity: 0.93
Polarizability (Å3): 23.6
Atomic Volume (cm3/mol): 23.8
Ionic Radius2- (pm): No data
Ionic Radius1- (pm): No data
Atomic Radius (pm): 186
Ionic Radius1+ (pm): 116
Ionic Radius2+ (pm): No Data
Ionic Radius3+ (pm): No data
Common Oxidation Numbers: +1
Other Oxid. Numbers: -1