isotope

美 [ˈaɪsəˌtoʊp]
英 [ˈaɪsətəʊp]
  • n.同位素
  • 网络同位素是;同位素测年;同位素检查
复数:isotopes  
Isotope
n.
1.
同位素one of two or more forms of a chemical element which have the same number of protons but a different number of neutrons in their atoms. They have different physical properties (= characteristics) but the same chemical ones
radioactive isotopes
放射性同位素
the many isotopes of carbon
碳的诸多同位素

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