Electronic transition

{
  "id": "MLC-T-CHM-003758",
  "term": "Electronic transition",
  "field": "Chemistry",
  "definition": "The movement of an electron from one electronic state to another within an atom or molecule, typically involving the absorption or emission of a photon. This change occurs when an electron jumps to a higher-energy orbital upon absorbing energy or falls to a lower-energy orbital while releasing energy. These transitions are responsible for the characteristic absorption and emission spectra of chemical species.",
  "synonyms": [
    "transition"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "n → σ* transition",
    "π → π* transition",
    "π → σ* transition",
    "σ → σ* transition"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 657 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/electronic-transition/"
}