放出一个正电子的衰变是A.α衰变B.β衰变C.β衰变D.γ衰变E.电子俘获

作者: rantiku 人气: - 评论: 0
问题 放出一个正电子的衰变是
选项 A.α衰变 B.β衰变 C.β衰变 D.γ衰变 E.电子俘获
答案 C
解析 :β粒子实质是一个正电子。

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