Atomic Number 76     Atomic Mass 190.23     Density 22.48 g/mL

State solid     Color bluish grey      Electronegativity 2.2

Melting Point 2700°C     Boiling Point >5300°C

Natural Isotopes Os-184 0.02%   Os-186 1.58%   Os-187 1.6%
   Os-188 13.3%   Os-189 16.1%   Os-190 26.4%    Os-192 41.0%

Abbreviated Electron Configuration [Xe] 4f¹⁴ 5d⁶ 6s²

Discovered by Smithson Tennant in 1804.