Physics Unit30: Nuclear Physics and Radioactivity (id: b43ec5694)

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本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics

[单选题]
The atomic mass unit is defi.3hdluk z7/ziz/z 6hv2 kh5.ql0bqht ned as

A. the mass of a proton.
B. the mass of an electron.
C. the mass of a hydrogen-1 atom.
D. one twelfth the mass of a carbon-12 atom.


参考答案:  D


本题详细解析: 暂无