Number of Isotopes: 1
Electron Affinity (kJ/mol):  
First Ionization Energy (kJ/mol): 384
Second Ionization Energy (kJ/mol): Not applicable
Third Ionization Energy (kJ/mol): Not applicable
Electronegativity: 0.7
Polarizability (&Aring3): 48.7
Atomic Volume (cm3/mol): No data
Ionic Radius2- (pm): No data
Ionic Radius1- (pm): No data
Atomic Radius (pm): No data
Ionic Radius1+ (pm): 194
Ionic Radius2+ (pm): No data
Ionic Radius3+ (pm): No data
Common Oxidation Numbers:
+1
Other Oxid. Numbers: