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77 Ir

Iridium

Transition Metal
Atomic Mass
192.22 u
Density
22.56 g/cm³
Melting Point
2,447 °C
Boiling Point
4,428 °C
State
Solid
Discovery
1803

Discovery

Discovered by Smithson Tennant in 1803.

Common Uses

  • Used in spark plugs and electrical contacts.
  • Used in aerospace components and jewelry.
  • Used in thermocouples for high-temperature measurements.

Interesting Facts

  • Iridium is one of the rarest elements in the Earth's crust.
  • It is highly corrosion-resistant, making it ideal for high-stress applications.
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