Radium seventh of a gram of radium. One kilogram of the Earth's crust contains about 900 picograms of radium, and one liter of sea water contains about 89 femtograms of radium. Radium was discovered by Marie Sklodowska-Curie and her husband Pierre Curie on 21 December 1898, in a uraninite (pitchblende) sample. While studying the mineral earlier, the Curies removed uranium from it and found that the remaining material was still radioactive. They separated out an element similar to bismuth from pitchblende in July 1898, that turned out to be polonium. They then separated out a radioactive mixture consisting mostly of two
The Radium Woman The Radium Woman The Radium Woman: A youth edition of the life of Madame Curie is a biography of the scientist Marie Curie adapted for children by Eleanor Doorly from the 1937 biography by Ève Curie. It was published by Heinemann in 1939 with woodcuts by Robert Gibbings as chapter headings. Doorly and "The Radium Woman" won the fourth annual Carnegie Medal from the Library Association, recognising the year's best children's book by a British subject. Only a handful of nonfiction books have been so honoured. Hesperides Press republished the biography in 2006. "The Radium Woman" was based on Ève