Radioactivity (id: 86e76b626)

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

[单选题]
08.25 The following nucleawi57sg9y( m7ch bdo3wg -3kyvr do vzgd9 ( 4t7teph**zreaction occurs: $_2^4He$ + $_4^9Be$ → $_6^{12}C$ + $_Z^AX$.What is $_Z^AX$

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


参考答案:  E


本题详细解析: 暂无

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