Number of Isotopes: | 4 |
Electron Affinity (kJ/mol): | 64.3 |
First Ionization Energy (kJ/mol): | 652.8 |
Second Ionization Energy (kJ/mol): | 1592 |
Third Ionization Energy (kJ/mol): | 2987.2 |
Electronegativity: | 1.66 |
Polarizability (Å3): | 11.6 |
Atomic Volume (cm3/mol): | 7.3 |
Ionic Radius2- (pm): | No data |
Ionic Radius1- (pm): | No data |
Atomic Radius (pm): | 128 |
Ionic Radius1+ (pm): | No data |
Ionic Radius2+ (pm): | 90.5 |
Ionic Radius3+ (pm): | 75.5 |
Common Oxidation Numbers: | +3, +6 |
Other Oxid. Numbers: | -2, -1, +1, +2, +4, +5 |