•Once the excited state is formed, it will eventually
“relax” or go back down to the ground state either by:
1)Nonradiative
relaxation = no light (heat)
2)Emission = light
emitted that is characteristic of the transition
1)Large DE then more energetic
radiation i.e. shorter wavelength UV, x-ray, etc.
2)Greater or lesser
intensity depending on the number of atoms or molecules involved in
the transition
3)Also a probability
factor