uranium-235

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English[edit]

A model of an atom of uranium-235

Etymology[edit]

uranium + 235 the atomic mass of this isotope.

Noun[edit]

uranium-235 (uncountable)

  1. (physics) An isotope of uranium, used for energy generation and in atomic weapons, containing one hundred and forty-three neutrons. It has a half-life of 7·038×108 years, whereupon it decays into thorium-231.

Usage notes[edit]

  • In scientific literature, the more technically correct abbreviation 23592U is used, rather than U-235.

See also[edit]