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Does ionization process release energy?

已有 339 次阅读 2019-7-16 19:17 |系统分类:科研笔记| 原子物理, 光谱, 原子能级

In the case of helium atoms, to ionize the first electron, energy is injected, which is 24.59 eV of the experimental results.


Will helium emit energy in the process? After the first electron is released, the second electron will automatically change its orbit, retreat from a high-energy orbit to the lowest-energy orbit (-54.42eV), and release energy, right? Is there such an ionization experiment that confirms or negates this conclusion?


Initial helium has 2 electrons in the same shell, it's full of electrons at first layer so it's the most stable atom. After 1st electron is ejected to infinity with 24.59eV energy, the 2nd relocates to the lowest energy level -54.42eV, about 30eV energy is emitted. Is this correct? Net energy is plus value in ionization process? What's wrong with this scenario?




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