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BookmarkIsotopes are forms of an element whose nuclei have the same atomic number–-the number of protons in the nucleus--but different mass numbers because they contain different numbers of neutrons..
For more information about the topic Isotope, read the full article at Wikipedia.org, or see the following related articles:
Carbon-14 — Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon discovered on February 27, 1940, by Martin Kamen and Sam Ruben. Its nucleus ... > read more
Radioactive decay — Radioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles (radiation). Decay is said to ... > read more
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