Write down the draw backs of Bohr atom model.

Explanation

(i) Bohr atom model is valid only for hydrogen atom or hydrogen like-atoms but not for complex atoms.
(ii) When the spectral lines are closely examined, individual lines of hydrogen spectrum is accompanied by a number of faint lines. These are often called fine structure. This is not explained by Bohr atom model.
(iii) Bohr atom model fails to explain the intensity variations in the spectral lines.
(iv) The distribution of electrons in atoms is not completely explained by Bohr atom model.