  In this paper it is shown that if one accept assumption of de Broglie that
"unitary wave-particle" exists simultaneously and this coexistence is real,
then one can find the mean life time of the hydrogen atom of Bohr
(intensities). Something more, the acceptance of de Broglie's ideas show that a
single excited hydrogen atom decays at exactly predictable moment (after
excitation). The natural width of excited hydrogen atoms are found using the
Bohr's model of this atom and de Broglie's ideas. The mean life time of the
excited states is a characteristic only of a statistical ensemble of many atoms
and coincide exactly with experimental data and can be used for analytical
applications. It is shown also that resonant Mossbauer absorption in time
domain provides a qualitative evidence of the existence of "own lifetime" for
first excited states of the nuclei.
