Radioactive decay

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  • the regular process by which radioactive isotopes break down into their decay products with a half-life which is specific to the isotope in question (see also radiocarbon dating). Source: Anthromorphemics
  • The spontaneous breakdown of certain kinds of atomic nuclei into one or more nuclei of different elements, involving the release of energy and subatomic particles. [Crutzen, Paul J. and Graedel, T.E. Atmospheric Change: An Earth System Perspective. p. 436.] Source: Atmospheric Chemistry Glossary
  • Large unstable atoms can become more stable by emitting radiation. This process is called radioactive decay. This radiation can be emitted in the form of a positively charged alpha particle, a negatively charged beta particle, or gamma rays or x-rays. Source: U.S. Nuclear Regulatory Commission

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