CBSE Class 11-science Answered
Why is energy released when an electron is added to neutral atom while energy is required to remove electron from neutral atom
Asked by lovemaan5500 | 25 Jan, 2019, 04:01: PM
Expert Answer
electron is added to neutral atom means, collision is taking place between neutral atom and energetic electron.
Energy is tranfered to neutral atom while electron is combining with neutral atom.
Hence atom which is combined with electron becomes negative ion and is excited to higher energy.
when the excited ion comes to ground state it releases energy,
when we remove electron from atom, electron is already bound to atom.
Hence energy is required to release the electron from bound atom
Answered by Thiyagarajan K | 28 Jan, 2019, 02:36: PM
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