Read Edit View history 核电荷数 hédiànhèshù atomic number Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 核电荷数/核電荷數 · hédiànhèshù · atomic number 2026/03/04 核电荷数 / 核電荷數 hédiànhèshù atomic number The number of protons in the nucleus of an atom, which determines the chemical identity of the element. 氦原子的核电荷数为2。 created sense Mar 4, 2026, 02:25 AM