A hydrogen atom initially in the n 3 level emits a photon andends up in the ground
Chapter 10, Problem Problems 12(choose chapter or problem)
A hydrogen atom initially in the n 3 level emits a photon andends up in the ground state.(a) What is the energy of the emitted photon?(b) If this atom then absorbs a second photon and returns to then 3 state, what must the energy of this photon be?
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