|died||13 may 1975 (aged 65)|louveciennes
|alma mater||the sorbonne|
|known for||francium discovery|
|awards||leconte prize (1960)|
|fields||physics, chemistry, radiochemistry|
|institutions||curie institute, university of strasbourg|
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. in 1962, she was the first woman to be elected to the french académie des sciences, an honor denied to her mentor curie. perey died of cancer in 1975.