Anion

{
  "id": "MLC-T-CHM-000609",
  "term": "Anion",
  "field": "Chemistry",
  "definition": "An atom or group of atoms that has a net negative electric charge due to an excess of one or more electrons compared to its number of protons. Anions are formed when a neutral atom or molecule gains electrons, a process that can occur during chemical reactions or through ionization. In an electric field, anions migrate towards the positive electrode, which is called the anode.",
  "references": [
    "Red Book, 3rd ed., p. 107"
  ],
  "url": "https://mlchart.com/terminology/chemistry/anion/"
}