Emission

{
  "id": "MLC-T-CHM-003847",
  "term": "Emission",
  "field": "Chemistry",
  "definition": "The process by which an atom or molecule releases energy, typically in the form of electromagnetic radiation (photons), as it transitions from a higher energy state to a lower energy state. This can occur spontaneously or be stimulated by external radiation. The emitted radiation has a characteristic wavelength or spectrum.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "deactivation",
    "excited state",
    "fluorescence",
    "luminescence",
    "phosphorescence",
    "aldehydes",
    "ketones",
    "noise",
    "receptor",
    "sink"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2239 (https://doi.org/10.1351/pac199668122223)",
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2186 (https://doi.org/10.1351/pac199062112167)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/emission/"
}