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When an electron gets excited, it absorbs energy and jumps to a higher energy level. An excited electron can release energy in the form of a photon and "fall" to a lower state due to the fact that an excited electron is unstable and rearranges itself to return to its lower energy state.
If an electron gets excited, that means that it needs to have absorbed energy in order to jump to another energy level. However, when it jumps to another level its position becomes less stable then it gives off energy in the form of a photon of light and goes back down.
When an excited election falls back to its original state, is the fall a gradual one (e.g. electron from n=3 to n=2 then to n=1) or does it happen in one step? If its a gradual one, is a photon released for each fall or is only one photon released for the entire process?
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