- Uranium - Wikipedia
For other uses, see Uranium (disambiguation) Uranium is a chemical element; it has symbol U and atomic number 92 It is a silvery-grey metal in the actinide series of the periodic table A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons Uranium radioactively decays, usually by emitting an alpha particle
- Uranium ore - Wikipedia
Uranium ore deposits are economically recoverable concentrations of uranium within Earth's crust Uranium is one of the most common elements in Earth's crust, being 40 times more common than silver and 500 times more common than gold [1]
- Uranium | Definition, Properties, Uses, Facts | Britannica
Uranium, radioactive chemical element of the actinoid series of the periodic table, atomic number 92 It is an important nuclear fuel It is a dense, hard metallic element that is silvery white in color It is ductile, malleable, and capable of taking a high polish Learn more about uranium in this article
- Isotopes of uranium - Wikipedia
Isotopes of uranium Uranium (92 U) is a naturally occurring radioactive element (radioelement) with no stable isotopes It has two primordial isotopes, uranium-238 and uranium-235, that have long half-lives and are found in appreciable quantity in Earth's crust The decay product uranium-234 is also found
- Uranium-235 - Wikipedia
Uranium-235 Uranium-235 (235 U or U-235) is an isotope of uranium making up about 0 72% of natural uranium Unlike the predominant isotope uranium-238, it is fissile, i e , it can sustain a nuclear chain reaction It is the only fissile isotope that exists in nature as a primordial nuclide Uranium-235 has a half-life of 703 8 million years
- Natural uranium - Wikipedia
Natural uranium (NU or Unat[1]) is uranium with the same isotopic ratio as found in nature It contains 0 711% uranium-235, 99 284% uranium-238, and a trace of uranium-234 by weight (0 0055%)
- Uranium - Simple English Wikipedia, the free encyclopedia
Uranium is a chemical element (a metal) on the periodic table It has an atomic number of 92, which means that a uranium atom has 92 protons in its center, the nucleus
- What is Uranium? | IAEA
Uranium is a vital component for the production of nuclear fuel, which is used in nuclear power reactors all over the world (Image: A Vargas IAEA) Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table
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