Definition of ground state in English:

ground state

Syllabification: ground state


  • The lowest energy state of an atom or other particle.
    More example sentences
    • When an atom or ion is in its ground state, the electrons spend a lot more time close to the nucleus than they do when the atom is in an excited state.
    • Nuclear isomers are excited states that eventually decay to the ground state, mostly by gamma radiation.
    • The ground state of a hydrogen atom is actually spherically symmetrical.

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