A hydrogen atom initially in the n = 2 level emits a photon and ends up in the ground state. (a) What is the energy of the emitted photon? (I got 10.2 eV) (b) If this atom then absorbs a second photon and returns to the n = 2 state, what must the energy of this photon be
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A hydrogen atom initially in the n = 2 level emits a photon and ends up in the ground state. (a) Wha...
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