Radioactivity (id: 74b5dd48d)

本题目来源于试卷: Radioactivity，类别为 美国物理杯赛(Physics Bowl)

[单选题]
13.21: The following nz rn9zfjj 5h1pt+ *m/zf.ia1oa.f- s kx. +pfcuclear reaction occurs: $_{53}^{131}I$ → $_{54}^{131}Xe$ +$_Z^AX$.What is $_Z^AX$.

A. a neutron
B. a proton
C. a positron
D. an alpha particle
E. an electron


参考答案:  E


本题详细解析: 暂无

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