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    What happens to an electron if it gains more energy than need to be excited to a higher energy level. Also can this electron only be a valence electron or can it also be an electron in the inner shell which absorbs a photon? Also what if the energy of the photon absorbed is greater than the ionisation energy?
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    (Original post by Jennifer50)
    What happens to an electron if it gains more energy than need to be excited to a higher energy level.
    Only photons with energies exactly equal to the difference between energy levels will be absorbed; others will be ignored.

    (Original post by Jennifer50)
    can this electron only be a valence electron or can it also be an electron in the inner shell which absorbs a photon?
    The electron can be on any energy level, including the inner shell.

    (Original post by Jennifer50)
    what if the energy of the photon absorbed is greater than the ionisation energy?
    The electron will have more kinetic energy.
 
 
 
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