  In this paper the investigation of the dynamical processes of liquid alkali
metals is executed by analyzing the time scales of relaxation processes in
liquids. The obtained theoretical dynamic structure factor $S(k,\omega)$ for
the case of liquid lithium is found to be in excellent agreement with the
recently received inelastic X-ray scattering data. The comparison and
interrelation with other theories are given here. Finally, an important part of
this paper is the confirmation of the scale uniformity of the dynamic processes
in liquid alkali metals predicted by some previous molecular dynamic simulation
studies.
