Which Happened First?

Discovery of californium

Discovery of californium
Image: United States Department of Energy (see File:Einsteinium.jpg) · Public domain · source

Californium is a synthetic chemical element; it has symbol Cf and atomic number 98. It was first synthesized in 1950 at Lawrence Berkeley National Laboratory by bombarding curium with alpha particles.

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

Which happened first?

Timeline

  1. Discovery of promethium1945
  2. Discovery of berkelium1949
  3. Discovery of californium (this page)1950
  4. Discovery of einsteinium1952
  5. Discovery of fermiumDecember 1952
  6. Discovery of mendelevium1955

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