Marguerite Perey

French physicist (1909–1975)

Marguerite Catherine Perey (19 October 1909 – 13 May 1975) 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.

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