atomic spectrum

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Related to Atomic spectra: Molecular spectra
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  • noun

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(physics) a spectrum of radiation caused by electron transitions within an atom

References in periodicals archive ?
The regularities in atomic spectra, deduced by Balmer, and in molecular spectra, by Deslandres nearly concurrently, then became the first quantitative analyses in quantum physics.
As can be seen from the above citation, he was so inspired as to postulate non-zero angular momentum of the atomic nucleus (nuclear spin) with which the atomic electrons possess a magnetic dipole interaction, giving additional effects to the atomic spectra.
Data for the other lines are available at the NIST Atomic Spectra Database [NIST 2012].
In Seth Suman's account, Sommerfeld in the 1920s abandoned theoretical explanations altogether, seeking rules for understanding and organizing atomic spectra from the direct study of empirical regularities in spectroscopic data.
The report shows that metallic sources such as cobalt- 57 and cobalt- 60 emit a " new class of atomic spectra of solids at room temperature".
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