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如上，請加上解釋~~
更新1:
How do you know there is gamma ray?
CE PHY I[MC-Radioactivity]
2010-03-30 10:42 pm
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如上，請加上解釋~~
回答 (1)
2010-03-31 4:01 am
✔ 最佳答案
Judging from the cloud chamber track, the emitted radiation composes gamma and alpha particles. Since an alpha particle consists of two protons and two neutrons, hence the remaining nuclide will have atomic no. Z-2 and mass number A-4.The answer is option A.
收錄日期: 2021-04-29 17:34:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100330000051KK02630