Atomic Number: 76

Name: Osmium

Atomic symbol: Os

Atomic Weight: 190.2

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f¹⁴5d⁶6s²

Ionization energies: 840 kJ/mol

Pauling electronegativity: 2.2

Melting Point: 3045^oC

Boiling Point: 5027^oC

Ionic radius: 0.88 angstroms (+4); 0.69 angstroms (+6)