nucleon number編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看nucleon numbernucleon number — 名詞名詞1. the total number of protons and neutrons in an atomic nucleus1.名詞釋義核子數the total number of protons and neutrons in an atomic nucleus例句The nucleon number of carbon-12 is 12.