What are the limitation of Bohr's model of an atom?

Explanation

Bohr's model of atom could explain the i) stability of atom ii) the line spectrum of hydrogen atom and ions with a single electron `("He"^(+),"Li"^(2+), "Be"^(3+).......)`
But this model could not explain the following observations .
i) Bohr's model cannot explain the spectra of atoms or ions having more than one electron .
ii) When the spectrum of hydrogen was taken with a spectroscope of high resolving power , it was observed that each line is actually 'a group of fine lines ' . Bohr's model cannot explain this fine structure in the atomic spectra.
iii) It cannot explain Zeeman effect (splitting of spectral lines in the presence of magnetic field ) and stark effect (splitting of spectral lines in an electric field) .
iv) It also cannot explain the ability of atoms to form molecules by chemical bonds.
v) It failed to explain the dual nature of electrons and also the geometry and shapes of moleules.