Từ điển trực tuyến - Online Dictionary

English - Vietnamese Dictionary
isotope /'aisoutoup/
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Concise Dictionary
+one of two or more atoms with the same atomic number but with different numbers of neutrons
Advanced English Dictionary
+ noun
(physics or chemistry) one of two or more forms of a chemical element with different physical PROPERTIES (= characteristics) but the same chemical ones: radioactive isotopes + the many isotopes of carbon

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