URANIUM

Uranium

Uranium is a silvery-white metallic chemical element in the actinide series of the periodic table, with symbol U and atomic number 92. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all its isotopes are unstable . The most common isotopes of uranium are uranium-238 and uranium-235 . Uranium has the second highest atomic weight of the primordially occurring elements, lighter only than plutonium. Its density is about 70% higher than that of lead, but not as dense as gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, ...

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uranium

Noun

  1. The element with atomic number 92 and symbol U.


The above text is a snippet from Wiktionary: uranium
and as such is available under the Creative Commons Attribution/Share-Alike License.

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