Characteristic line

{
  "id": "MLC-T-CHM-001882",
  "term": "Characteristic line",
  "field": "Chemistry",
  "definition": "A specific wavelength or energy of electromagnetic radiation emitted or absorbed by an atom or ion, corresponding to a transition between discrete energy levels. These lines are unique to each element and form the basis of atomic spectroscopy. They are used for qualitative and quantitative elemental analysis.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "spectral line",
    "atomic spectroscopy"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 715 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/characteristic-line/"
}