ABSTRACT
Since the interaction potential depends only on the relative coordinate of the two particles, it is convenient to introduce the relative coordinate. The energy level such obtained agrees exactly with that found from the Bohr model. It also agrees the main features of the experimental spectrum. From the solution of the Schrodinger equation for the hydrogenic atom, we know that the eigenenergy of electron is determined purely by the radial quantum number. An electron can in principle make a transition from one eigenenergy state to another by either absorbing or emitting a photon with a proper energy. In the emission spectrum, depending on the final radial quantum number, the spectral lines can fall into different optical bands.
