atomic spectrum

Noun
  1. (physics) a spectrum of radiation caused by electron transitions within an atom;
    The series of spectrum lines is characteristic of the element (synset 111446402)
    referred to in: natural philosophy, physics - the science of matter and energy and their interactions
    is a type of: spectrum - an ordered array of the components of an emission or wave
    has: fine structure - the presence of groups of closely spaced spectrum lines observed in the atomic spectrum of certain elements

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