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Unformatted text preview: 2 3p 6 5 valence electrons 25. When we put energy into an atom, it is absorbed by electrons and causes them to jump into an excited state (higher energy levels). The electrons then jump back down to a lower energy level and release energy. The photons of energy that are released have specific wavelengths that correspond to particular colors. Different colors are caused by photons of different energies (and consequently different wavelengths) arising from different energy level jumps by the electrons within the atom....
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- Spring '07