Isotope

{
  "id": "MLC-T-ENV-015035",
  "term": "Isotope",
  "field": "Environment",
  "definitions": [
    "1. A variation of an element that has the same atomic number of protons but a different weight because of the number of neutrons. Various isotopes of the same element may have different radioactive behaviors, some are highly unstable.\n\n2. A form of an element that has the same atomic number (same number of protons), but a different atomic mass due to a different number of neutrons.\n\n3. Form of an element that has the same number of protons but a different number of neutrons in the nucleus, giving it a different atomic mass. For example, uranium has thirty-seven different isotopes, including uranium-235 and uranium-238.",
    "Atoms of the same element that have the same atomic number, but a different mass number; unstable isotopes are radioactive and decay to become stable isotopes."
  ],
  "subject": [
    "Air",
    "Science and research"
  ],
  "references": [
    "Terms of Environment",
    "RadNet Glossary; Radiation Protection Radiation Glossary; RadTown Glossary",
    "Radiation Protection Radiation Glossary",
    "Environmental Geophysics Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/isotope/"
}