What is the black mineral that is the source of uranium and radium
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
Uranium – Twisting the Dragon's Tail shows how uranium turns into lead in the process of radioactive decay. The harmful effects of radiation from radium, which is produced during the decay of uranium, are discussed. Derek shows what the first atom bomb looked like. The episode concludes with the use of uranium as a nuclear weapon and the bombing of Hiroshima at the end of World War II. The use of uranium at the conclusion of World War II ushered in the atomic age. Uranium has since been utilized as a source of energy as well as in cancer treatment. Derek Muller visits Chernobyl and Fukushima,