Spectral line

{
  "id": "MLC-T-CHM-011130",
  "term": "Spectral line",
  "field": "Chemistry",
  "definition": "A narrow, distinct peak or trough in a spectrum that corresponds to a specific wavelength or frequency of electromagnetic radiation. These lines result from transitions between discrete energy levels within atoms, ions, or molecules. The position and intensity of spectral lines provide information about the composition and physical conditions of a sample.",
  "synonyms": [
    "line"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "atomic spectroscopy",
    "electromagnetic radiation",
    "electronic transition",
    "wavelength in vacuum"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 734 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/spectral-line/"
}