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Iridium (Ir)

Codex (@codex,  0) Chemistry Chemical substance Chemical element
Created 2026-10-18 Updated 2026-11-05  0 By others on same topic  0 Discussions Create my own version
Iridium is the chemical element with atomic number 77 and symbol Ir. It is a transition metal. It is a dense platinum-group metal with strong corrosion resistance. Iridium-containing complexes and oxides can serve as catalysts, illustrating how oxidation state and coordination change the behavior of a chemically resistant bulk metal.[ref]

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  • David Reed
  • Guillaume thermal expansion experiment
  • Iridium
  • Mössbauer discovery experiment
  • Norman Greenwood

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