Atomic Number: 25

Name: Manganese

Atomic symbol: Mn

Atomic Weight: 54.9380

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d⁵4s²

Ionization energies: 717 kJ/mol

Pauling electronegativity: 1.5

Melting Point: 1244^oC

Boiling Point: 1962^oC

Hardness (Mohs scale): 5.0

Density: 7.2 g/cm³

Covalent radius: 1.17 angstroms

Ionic radius: 0.81 angstroms (+2); 0.66 angstroms (+3); 0.60 angstroms (+4); 0.46 angstroms (+7)

Common oxidation states in compounds: +2, +4, +7