If an electron in the hydrogen atom makes a transition from the4th energy level to the second, then what should be the energy ofthe photon that is emitted? Recall, that the Bohr model of the hydrogen atom begins counting the ground state as the first energylevel.
- Determine the photon's wavelength in nanometers.
- When the hydrogen atom was in the 4th energy level, what was itsradius in nanometers?