出典:Wiktionary
出典:『Wiktionary』 (2026/04/12 21:07 UTC 版)
From nucleus + -ide. Coined by American chemist Truman Kohman in 1947 in an article in the American Journal of Physics, in which he defines nuclide as "a species of atom characterized by the constitution of its nucleus, in particular by the numbers of protons and neutrons in its nucleus."
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Carbon-14 is specified as 146C or 6-C-14, in which 6 stands for the atomic number and 14 for the atomic mass. Or, one can simply write C; the "6" (for atomic number) is redundant. |