uranium

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protactinium 92 neptunium

Pronunciation[change]

  • (file)
  • Hyphenation: ura‧ni‧um

Noun[change]

Singular
uranium

Plural
none

  1. (uncountable) Uranium is an element of the periodic table with atomic number 92. Its symbol is U.
    Uranium is the natural element with the biggest atomic core.
  2. (uncountable) Uranium is also the radioactive metal made of uranium atoms.
    Uranium has been increasingly used since the last six decades, its radioactive properties have found both military and civil uses.