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Bookmark or Share- Uranium | Definition, Properties, Uses, & Facts | BritannicaIt is now known that uranium, radioactive in all its isotopes, consists naturally of a mixture of uranium-238 (99.27 percent, 4,510,000,000-year half-life), uranium-235 (0.72 percent, 713,000,000-year half-life), and uranium-234 (0.006 percent, 247,000-year half-life).
- What is Uranium? | IAEAThere are three natural isotopes of uranium — uranium-234 (U-234), uranium-235 (U-235) and uranium-238 (U-238). U-238 is the most common one, accounting for around 99 per cent of natural uranium found on earth.
- Nuclear Fuel Facts: Uranium | Department of EnergyUranium has the highest atomic weight of all naturally occurring elements. Uranium occurs naturally in low concentrations in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. Uranium ore can be mined from open pits or underground excavations.
- Uranium - WikipediaNatural uranium consists of three major isotopes: uranium-238 (99.28% natural abundance), uranium-235 (0.71%), and uranium-234 (0.0054%).
- Isotopes of uranium - WikipediaNatural uranium consists of three main isotopes, 238 U (99.2739–99.2752% natural abundance), 235 U (0.7198–0.7202%), and 234 U (0.0050–0.0059%). [5] All three isotopes are radioactive (i.e., they are radioisotopes ), and the most abundant and stable is uranium-238, with a half-life of 4.4683 × 10 9 years (about the age of the Earth ).
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