77

Ir

Iridium

192.22

Transition Metal
Solid

Discovery

Tennant, Smithson (1803)

Etymology

Greek via Latin

Meaning

Of rainbows

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Face-centered cubic

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

2410.0 °C

2683.15 K

Boiling point

  (at 101.325 kPa)

5027.0 °C

5300.15 K

Density

  (at 21 °C and 101.325 kPa)

22.40 g/cm3

Electronegativity

2.20