英语词汇“mass number”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	mass number
释义	mass number noun : an integer that expresses the mass of an isotope with the mass of the most abundant oxygen isotope taken as 16 and that designates the number of nucleons in the nucleus < the symbol for carbon of mass number 14 is ¹⁴C or C¹⁴ > — symbol A; compare atomic mass
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