Which Happened First?

Discovery of osmium

Discovery of osmium
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Osmium is a chemical element; it has symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group. It was discovered in 1803 by Smithson Tennant, who named it for the characteristic smell of its volatile oxide.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Timeline

  1. Discovery of tantalum1802
  2. Discovery of iridium1803
  3. Discovery of palladium1803
  4. Discovery of rhodium1803
  5. Discovery of cerium1804
  6. Discovery of osmium (this page)1804

Related

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Discovery of osmium (1804) · Which Happened First?