Physics Unit30: Nuclear Physics and Radioactivity (id: 6fde6b2fa)

本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 国际高中通用物理

[单选题]
An element with atomic mass number of 14 and atomic number 6 has enj /6 qe6*,ruus*aashow many prottglgr qu9r;0xb4a ; 7xongtbr0r 4;gx 79;uaxl qs?

A. 6
B. 8
C. 14
D. 20


参考答案:  A


本题详细解析: 暂无

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