Radioactivity

{
  "id": "MLC-T-CHM-009871",
  "term": "Radioactivity",
  "field": "Chemistry",
  "definition": "The spontaneous emission of radiation from the unstable nuclei of certain atoms, resulting in their transformation into more stable nuclei. This process involves the release of alpha particles, beta particles, gamma rays, or other forms of energy. The activity of a radioactive sample is measured in becquerels (Bq) or curies (Ci).",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "nuclide",
    "radioactive decay"
  ],
  "references": [
    "Green Book, 2nd ed., p. 22 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2523 (https://doi.org/10.1351/pac199466122513)",
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 988 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/radioactivity/"
}