Bohr’s Model of Atom

In order to overcome the objections raised against Rutherford’s model of the atom, Neils Bohr put forward the following postulates about the model of an atom:

• Only certain special orbits known as discrete orbits of electrons, are allowed inside the atom.
• While revolving in discrete orbits the electrons do not radiate energy.

These orbits or shells are called energy levels. Energy levels in an atom are shown in image-

These orbits or shells are represented by the letters K,L,M,N….. or the numbers n= 1,2,3,4….