electromagnetic transition

https://doi.org/10.1351/goldbook.08243
Transition accompanied by the emission or absorption of a photon.
Notes:
  1. The frequency of the photon (\(\nu\)) is related to the energy difference of the transition by \(h\nu = \Delta E = |E_{2} – E_{1}|\), where \(h\) is the Planck constant.
  2. In general, an electromagnetic transition obeys certain rules called "electromagnetic selection rules".
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 657 [Terms] [Paper]
Citation: 'electromagnetic transition' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08243 RIS BibTex EndNote
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