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
Radium Girls to the bones. It also considers the induction of a range of different forms of cancer as a result of internal exposure to radium and its daughter nuclides. The book used data from radium dial painters, people who were exposed as a result of the use of radium-containing medical products, and other groups of people who have been exposed to radium. Radium Girls The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self-luminous paint. Painting was done by women at three different sites in the United States, and the term now applies to