uranium-235 en · NOUN
Etymology
From uranium + 235 (the atomic mass of the isotope).
Meanings
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(uncountable) A fissile isotope of uranium, used for energy generation and in atomic weapons, containing 143 neutrons. It has a half-life of 7.038×10⁸ years; it decays into thorium-231 and ultimately lead.
The Zaporizhzhia plant provided about a fifth of Ukraine’s electricity before Russia’s invasion, and has been forced to operate on backup generators a number of times. It has six Soviet-designed water-cooled and water-moderated reactors containing uranium-235.
2022 November 21, Lorenzo Tondo, Peter Beaumont, “Ukraine to start evacuations in Kherson and Mykolaiv regions as winter sets in”, in The Guardian:
Relateds
uranium-233 · uranium-239 · uranium-234 · uranium-238 · uranium-240 · uranium-232