Physics Unit30: Nuclear Physics and Radioactivity (id: bcaf29cf7)

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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]
Compared to the masses of its separate protho( sf2.vjvo5zt6f.2 3jpqik (9bs e xons and neutrons90wc3d int4c b soj e+ 8j77m+.cswvb)6fxrqp, the total mass of a stable nucleus783)s 4b wp mj60n+.tjsfwi + cx9r q7odvcbce is always

A. less.
B. the same.
C. greater.
D. zero.


参考答案:  A


本题详细解析: 暂无