本题目来源于试卷: Radioactivity，类别为 美国物理杯赛(Physics Bowl)
[单选题]
02.16: During a particular c 5ieuk s ey1m;jb-.4tkin25: akry4izs9ekpg;u d of radioactive decay, a particle is emitted from the nucleus of an atom and the atom's atomic number increases by one. This decay necesyu5kz 4;pak s ge9:ir2sarily involves the emission of _______ from the nucleus?
A. an alpha particle
B. a beta particle
C. a gamma ray
D. a proton
E. a neutron
参考答案: B
本题详细解析:
暂无
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