Atomic Number: 51

Name: Antimony

Original name: Stibium

Atomic symbol: Sb

Atomic Weight: 121.75

Electron affinity: -101 kJ/mol

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p³

Ionization energies: 834 kJ/mol

Pauling electronegativity: 1.9

Melting Point: 631^oC

Boiling Point: 1750^oC

Density: 6.68 g/cm³

Covalent radius: 1.41 angstroms

Ionic radius: 2.45 angstroms (-3); 0.90 angstroms (+3); 0.62 angstroms (+5)

Van Der Wall's radius: 2.2 angstroms

Common oxidation states in compounds: -3, +3, +5