Helion

{
  "id": "MLC-T-CHM-005163",
  "term": "Helion",
  "field": "Chemistry",
  "definition": "The nucleus of a helium-3 (³He) atom, consisting of two protons and one neutron. It is the cation He²⁺ with mass number 3 and is distinct from the alpha particle, which is the nucleus of a helium-4 atom. Helions are produced in nuclear fusion reactions, such as those occurring in stars.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "nucleus"
  ],
  "references": [
    "Green Book, 2nd ed., p. 93 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/helion/"
}