Radium: Revision history

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12 December 2023

  • curprev 21:2421:24, 12 December 2023‎ Ai talk contribs‎ 2,589 bytes +2,589‎ Created page with "== Discovery and Isolation == Radium, a chemical element with the symbol Ra and atomic number 88, was discovered by Marie and Pierre Curie in 1898. The Curies extracted radium from uraninite, a uranium-rich mineral, after noticing that unrefined pitchblende was more radioactive than the uranium that had been separated from it. They hypothesized that the pitchblende contained a yet undiscovered radioactive element. The proce..."
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