Definition of energy level in English:

energy level

Syllabification: en·er·gy lev·el

noun

Physics
  • The fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
    More example sentences
    • This means that an atom with eight electrons in its outermost energy level is very stable.
    • An electron in a lower energy level is both closer to the nucleus and has fewer electrons between itself and the nucleus.
    • When an electron falls from a higher energy level to a lower energy level, a photon is given off.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody