Which Happened First?

Marguerite Perey

Marguerite Perey
Image: Waltercolor · CC BY-SA 4.0 · source

Marguerite Catherine Perey was a French physicist and a student of Marie Curie. In 1939, Perey discovered the element francium by purifying samples of lanthanum that contained actinium. She graduated from the Sorbonne in 1946 with a Doctorate of Physics; her thesis was about her recently discovered element 87.

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

Who was born first?

Timeline

  1. Edward Lawrie TatumDecember 14, 1909 – November 5, 1975
  2. Elżbieta ZawackaMarch 19, 1909 – January 10, 2009
  3. Marguerite Perey (this page)October 19, 1909 – May 13, 1975
  4. Rita Levi-MontalciniApril 22, 1909 – December 30, 2012
  5. Robert SerberMarch 14, 1909 – June 1, 1997
  6. Stanisław UlamApril 13, 1909 – May 13, 1984

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