It is inconsistent with Heisenberg uncertainty principle.
It explains the concept of spectral lines for hydrogen like species.
Electrons behave as particle and wave.
Solution
(a) It successfully explained the stability of atoms.
(b) It is not in agreement with Heisenberg's uncertainty principle.
(c) It does not explain the spectra of multi-electron atoms.
(d) It does not explain de Broglie concept of the dual character of matter.