Science, Tech, Math › Science Nuclide Definition Share Flipboard Email Print SCIEPRO / SCIENCE PHOTO LIBRARY / Getty Images Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated March 06, 2017 Nuclides are an atom or ion characterized by the contents of their nucleus. Examples: 12C6 and 14C6 are both nuclides. Cite this Article Format mla apa chicago Your Citation Helmenstine, Anne Marie, Ph.D. "Nuclide Definition." ThoughtCo, Aug. 29, 2020, thoughtco.com/definition-of-nuclide-605435. Helmenstine, Anne Marie, Ph.D. (2020, August 29). Nuclide Definition. Retrieved from https://www.thoughtco.com/definition-of-nuclide-605435 Helmenstine, Anne Marie, Ph.D. "Nuclide Definition." ThoughtCo. https://www.thoughtco.com/definition-of-nuclide-605435 (accessed January 28, 2021). copy citation