29 Facts About Uranium


Uranium is a chemical element with the symbol U and atomic number 92.

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Uranium has the highest atomic weight of the primordially occurring elements.

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Uranium-235 is the only naturally occurring fissile isotope, which makes it widely used in nuclear power plants and nuclear weapons.

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Uranium-238 is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium-239 in a nuclear reactor.

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Uranium is used as a colorant in uranium glass, producing lemon yellow to green colors.

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Uranium metal reacts with almost all non-metal elements and their compounds, with reactivity increasing with temperature.

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Uranium-235 was the first isotope that was found to be fissile.

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Uranium was used in photographic chemicals, in lamp filaments for stage lighting bulbs, to improve the appearance of dentures, and in the leather and wood industries for stains and dyes.

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Uranium metal is used for X-ray targets in the making of high-energy X-rays.

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Uranium determined that a form of invisible light or rays emitted by uranium had exposed the plate.

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Uranium-236 was itself enriched by the decay of Pu, accounting for the observed higher-than-expected abundance of thorium and lower-than-expected abundance of uranium.

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Uranium is a naturally occurring element that can be found in low levels within all rock, soil, and water.

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Uranium is the 51st element in order of abundance in the Earth's crust.

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Uranium is the highest-numbered element to be found naturally in significant quantities on Earth and is almost always found combined with other elements.

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Uranium is more plentiful than antimony, tin, cadmium, mercury, or silver, and it is about as abundant as arsenic or molybdenum.

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Uranium is found in hundreds of minerals, including uraninite, carnotite, autunite, uranophane, torbernite, and coffinite.

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Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining .

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Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali.

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Uranium content is usually referenced to O, which dates to the days of the Manhattan Project when O was used as an analytical chemistry reporting standard.

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Uranium dioxide is the form in which uranium is most commonly used as a nuclear reactor fuel.

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Uranium-238 is the most stable isotope of uranium, with a half-life of about 4.

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Uranium-238 is usually an alpha emitter, decaying through the uranium series, which has 18 members, into lead-206, by a variety of different decay paths.

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Uranium-234, which is a member of the uranium series, decays to lead-206 through a series of relatively short-lived isotopes.

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Uranium-233 is made from thorium-232 by neutron bombardment, usually in a nuclear reactor, and U is fissile.

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Uranium-235 is important for both nuclear reactors and nuclear weapons, because it is the only uranium isotope existing in nature on Earth in any significant amount that is fissile.

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Uranium-238 is not fissile, but is a fertile isotope, because after neutron activation it can be converted to plutonium-239, another fissile isotope.

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Uranium is not absorbed through the skin, and alpha particles released by uranium cannot penetrate the skin.

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Uranium metal is commonly handled with gloves as a sufficient precaution.

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Uranium concentrate is handled and contained so as to ensure that people do not inhale or ingest it.

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