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5. The energy levels of an electron in an atomic-like system are given by the expression E- -Cn C> O, p>O n 1,2,3,... If the ionization energy for the electron in its ground state is 20 eV, and a photon of wavelengthl00 nm is emitted when the electron makes a transition from the third level to the ground state, find Cand p.
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The energy level is, 7 200 eV=-C C--200 eV 20 7 20 Es 20 1F 20 The energy level is, 20 20 leV (20-20 ev 3P20 eVv 2 3 1240 eVn

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