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An excited atom decays to its ground state and emits a green photon. If the atom decayed to an intermediate state instead, the photon emitted could be....

red or blue?

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asked by Molly
  1. It would have to be of longer wavelength, because the energy gap would be less. Red would be one possibility, but there are others, such as yellow, orange, red-orange and infrared.

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    posted by drwls

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