Excitation

{
  "id": "MLC-T-CHM-013089",
  "term": "Excitation",
  "field": "Chemistry",
  "definition": "The process of raising an atom, molecule, or ion from its ground electronic state to a higher energy state by absorbing energy. This transition occurs when the entity absorbs a photon or collides with another particle, such as an electron or another atom, transferring the required amount of energy. The excited state is unstable, and the entity returns to a lower state by emitting radiation or through non-radiative processes.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 1982, 54, 1533. 'Glossary of terms used in nuclear analytical chemistry (Provisional)' on page 1541 (https://doi.org/10.1351/pac198254081533)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/excitation/"
}