  In Part one of this Paper a hypothesis is forwarded of the electron charge in
an atom existing in a distributed form. To check it by methods of
electrodynamics and mechanics (without invoking the formalism of quantum
mechanics and the concepts of the wave function and of the operators), the
potential, kinetic, and total energies were calculated for three states of the
hydrogen atom, which were found to agree closely with the available
experimental data. The Part two of the Paper offers additional assumptions
concerning various scenarios of motion of elements of the distributed electron
charge which obey fully the laws of theoretical mechanics. The angular momentum
of the ground-state hydrogen atom calculated in the frame of theoretical
mechanics is shown to coincide with the spin which is $\hbar/2$.
