Bohr's model failed to explain atomic spectra of multielectron atom

Bohr's model could not explain the spectra of ………………

Bohr's model cannot explain the spectrum of neutral Lithium atoms because

In Bohr's model of the hydrogen atom:

The Bohr's model of atoms:

What are the postulates of Bohr's model of hydrogen atom ? Discuss the importance of this model to explain various series of line spectra in hydrogen atom.