Parent Nuclide Definition

Definition: A parent nuclide is a nuclide that decays into a specific daughter nuclide during radioactive decay.

Examples: Na-22 decays into Ne-22 by β+ decay. Na-22 is the parent nuclide and Ne-22 is the daughter nuclide.

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Helmenstine, Anne Marie, Ph.D. "Parent Nuclide Definition." ThoughtCo, Jun. 12, 2014, thoughtco.com/definition-of-parent-nuclide-605477. Helmenstine, Anne Marie, Ph.D. (2014, June 12). Parent Nuclide Definition. Retrieved from https://www.thoughtco.com/definition-of-parent-nuclide-605477 Helmenstine, Anne Marie, Ph.D. "Parent Nuclide Definition." ThoughtCo. https://www.thoughtco.com/definition-of-parent-nuclide-605477 (accessed May 21, 2018).