Number of Isotopes: 0
Electron Affinity (kJ/mol): 50
First Ionization Energy (kJ/mol): 535.9
Second Ionization Energy (kJ/mol): 1052
Third Ionization Energy (kJ/mol): 2150
Electronegativity: 1.15
Polarizability (Å3): 30.1
Atomic Volume (cm3/mol): 20.1
Ionic Radius2- (pm): No data
Ionic Radius1- (pm): No data
Atomic Radius (pm): 183
Ionic Radius1+ (pm): No data
Ionic Radius2+ (pm): No data
Ionic Radius3+ (pm): 111
Common Oxidation Numbers: +3
Other Oxid. Numbers: