Atomic spectral lines

{
  "id": "MLC-T-CHM-000903",
  "term": "Atomic spectral lines",
  "field": "Chemistry",
  "definition": "Narrow, discrete wavelengths of electromagnetic radiation emitted or absorbed by atoms as their electrons transition between specific energy levels. Each element possesses a unique set of these lines, forming a characteristic spectral fingerprint. These lines are observed in atomic emission spectroscopy and atomic absorption spectroscopy, providing qualitative and quantitative information about elemental composition.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "ionization",
    "wavelength"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 118 (https://media.iupac.org/publications/analytical_compendium/)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/atomic-spectral-lines/"
}