76

Os

Osmium

190.23

Transition Metal
Solid

Discovery

Tennant, Smithson (1803)

Etymology

Greek via Modern Latin

Meaning

A smell

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Hexagonal close-packed

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

3045.0 °C

3318.15 K

Boiling point

  (at 101.325 kPa)

5627.0 °C

5900.15 K

Density

  (at 21 °C and 101.325 kPa)

22.60 g/cm3

Electronegativity

2.20