本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics
[单选题]
If an atom's atomic nuq 5k +8ts4sqh42 djjxbmber is given by Z, its atomic mass by A, and i o,u1k2;9kt yoesol ( jqe9lq;ts neutron number by N, whikoeo q,;l 9;que to ylsk1(2j9ch of the following is correct?
A. N = A + Z
B. N = Z - A
C. N = A - Z
D. none of the given answers
参考答案: C
本题详细解析:
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Post time 2024-1-22 01:01:29