helium-4

English

Noun

helium-4 (uncountable)

  2. (physics) The normal isotope of helium, 42He, that has two neutrons.
    Hypernyms: helium < element < substance, material
    Coordinate term: helium-3 (the much rarer of these two stable isotopes)

See also

This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.