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已知鈉 ( Na ) 的原子序是11 , 質量數是23 , 則一個中性的鈉原子中的中子數和電子數應該是多少?[85推薦甄選]
Posted in 歷屆學測(推甄)考題, 物質的組成.
Tagged with 85推甄, 中子, 原子序, 原子結構, 質量數.
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By 張慶堂 – 2014 年 09 月 26 日
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