Iron

Name: Iron

Original name: Ferrum

Atomic symbol: Fe

Atomic Weight: 55.847

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d⁶4s²

Ionization energies: 759 kJ/mol

Pauling electronegativity: 1.8

Melting Point: 1535^oC

Boiling Point: 2750^oC

Hardness (Mohs scale): 4.5

Density: 7.9 g/cm³

Covalent radius: 1.17 angstroms

Ionic radius: 0.75 angstroms (+2); 0.64 angstroms (+3)

Common oxidation states in compounds: +2, +3