| 单词 | isotopes |
| 释义 | isotope /īˈsō-tōp/nounOne of a set of chemically identical species of atom which have the same atomic number but different mass numbers (a natural element is made up of isotopes, always present in the same proportions) ORIGIN: iso- and Gr topos place (ie in the periodic table) isotopic /-topˈik/ adjective isotopˈically adverb isotopy /ī-sotˈə-pi/ noun The fact or condition of being isotopic isotope separation noun The process of altering the relative abundance of isotopes in a mixture isotopic number noun The excess number of neutrons over protons in a nuclide isotopic spin same as isospin stable isotope A non-radioactive isotope found in nature |
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