Manganese
Elemental State Mn
Electron Configuration 1s22s22p63s23p64s23d5
First Ionization Potential 7.434 eV
Electron Affinity  
Z* 5.283 (Clementi-Raimondi)
Pauling Electronegativity 1.55
Covalent Radius 1.46 Å
Metallic Radius 1.37 Å
Ionic Radius 0.80 Å Mn2+ coordination number = 4; high spin

0.89 Å Mn2+ coordination number = 5; high spin

0.81 Å Mn2+ coordination number = 6; low spin

0.970 Å Mn2+ coordination number = 6; high spin

1.04 Å Mn2+ coordination number = 7; high spin

1.10 Å Mn2+ coordination number = 8

0.72 Å Mn3+ coordination number = 5

0.72 Å Mn3+ coordination number = 6; low spin

0.785 Å Mn3+ coordination number = 6; high spin

0.53 Å Mn4+ coordination number = 4

0.67 Å Mn4+ coordination number = 6

van der Waal's Radius  
Melting Point 1246 oC
Boiling Point 2061 oC
Density 7.21 - 7.44 g/cm3
Other Properties