Which Happened First?

Discovery of einsteinium

Discovery of einsteinium
Image: Haire, R. G., US Department of Energy. Touched up by Materialscientist at en.wikipedia. · Public domain · source

Einsteinium is a synthetic chemical element; it has symbol Es and atomic number 99 and is a member of the actinide series and the seventh transuranium element.

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

Which happened first?

Timeline

  1. Discovery of berkelium1949
  2. Discovery of californium1950
  3. Discovery of einsteinium (this page)1952
  4. Discovery of fermiumDecember 1952
  5. Discovery of mendelevium1955
  6. Discovery of nobelium1958

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