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Any electron is not fixed to any sub-shell or orbital.

If you provide sufficient energy to an electron, it would make transition to any of the higher energy orbitals and then come back to the lower orbitals radiating energy.

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13y ago
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13y ago

Any electron is not fixed to any sub-shell. Electrons gain energy and make transition to

higher energy levels. Then they loose energy and come back to lower levels radiating energy. Hence, for any electron to come from 3s sub-shell to 2s sub-shell, energy must be

given out.

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Q: What happens when a 3s electron becomes a 2s electron?
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