Number of Isotopes: 1
Electron Affinity (kJ/mol): 328
First Ionization Energy (kJ/mol): 1681
Second Ionization Energy (kJ/mol): 3374.1
Third Ionization Energy (kJ/mol): 6050.3
Electronegativity: 3.98
Polarizability (Å3): 0.634
Atomic Volume (cm3/mol): 12.6
Ionic Radius2- (pm): No data
Ionic Radius1- (pm): 119
Atomic Radius (pm): 72
Ionic Radius1+ (pm): No data
Ionic Radius2+ (pm): No data
Ionic Radius3+ (pm): No data
Common Oxidation Numbers: -1
Other Oxid. Numbers: