An electron orbiting a hydrogen atom has an initial energy
An electron orbiting a hydrogen atom has an initial energy of -0.544 eV. The atom emits a photon, then absorbs a photon, ending up with an energy of -3.4 eV. What was the wavelength of the emitted photon?
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an electron orbiting a hydrogen atom has an initial energy of -0544 ev the atom emits a photon then absorbs a photon
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