Number of Isotopes: | 4 |
Electron Affinity (kJ/mol): | 15.7 |
First Ionization Energy (kJ/mol): | 759.3 |
Second Ionization Energy (kJ/mol): | 1561.1 |
Third Ionization Energy (kJ/mol): | 2957.3 |
Electronegativity: | 1.9 |
Polarizability (Å3): | 8.4 |
Atomic Volume (cm3/mol): | 7.1 |
Ionic Radius2- (pm): | No data |
Ionic Radius1- (pm): | No data |
Atomic Radius (pm): | 126 |
Ionic Radius1+ (pm): | No data |
Ionic Radius2+ (pm): | 83.5 |
Ionic Radius3+ (pm): | 73.8 |
Common Oxidation Numbers: | +2, +3 |
Other Oxid. Numbers: | -2, -1, +1, +4, +5, +6 |