The Hydrogen Atom
Some of the problems that were the center of discussions during the long genesis of the quantum theory were the atomic structure and the radiated spectral lines, in particular the emission lines of Hydrogen. A convincing explanation of this problem had to wait to the advent of the quantum theory. The Bohr postulates were, as will be seen below, unable to explain convincingly the electronic configuration and the spectral lines of atoms in the presence of a magnetic field. The application of the quantum theory to the atomic problem was undoubtedly the litmus test of the new theory.