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词汇 atomic number
释义

atomic number

noun
/əˌtɒmɪk ˈnʌmbə(r)/
/əˌtɑːmɪk ˈnʌmbər/
(chemistry化学)
  1. the number of protons in the nucleus (= centre) of an atom of a particular chemical element. Elements are placed in the periodic table according to their atomic numbers.原子序数(指原子在元素周期表中的序号)Topics Physics and chemistryc2
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