本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics
[单选题]
When a gamma ray is emi/ rz7v3zbzwil:qz8 n:vt ((ol 5kwoein:qj* (tted from an unstable nucleus,gmcfs93l y8m -)6opd bek01s p w0ctx2
A. the number of neutrons and the number of protons drop by two.
B. the number of neutrons drops by one and the number of protons increases by one.
C. there is no change in either the number of neutrons or the number of protons.
D. none of the given answers
参考答案: C
本题详细解析:
暂无
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Post time 2024-1-22 01:01:29