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       #Post#: 2612--------------------------------------------------
       Chemistry definition- phosphorescence
   DIR By: Michel
       Date: June 13, 2013, 9:49 pm
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       Phosphoresence - The process by which a molecule is excited by
       light to a higher electronic state and then undergoes a
       radiationless transition to a state of different multiplicity
       from which it decays, after some delay, to the ground state. The
       emitted light is normally of longer wavelength than the exciting
       light because vibrational energy has been dissipated
       
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