本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics
[单选题]
An atom's mass number py- zjyj d q3gle ,cu5r(:2gj1isyn7slum1 w.maw b e)j 5dc5g419q, xid determined by the number of
A. neutrons in its nucleus.
B. nucleons in its nucleus.
C. protons in its nucleus.
D. alpha particles in its nucleus.
参考答案: B
本题详细解析:
暂无
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Post time 2024-1-22 01:01:29