Give the main postulates of Bohr's model of an atom.

Explanation

The main postulates of Bohr's model of atom are
1) Only certain special, discrete orbits of electrons are allowed inside the atom. These orbits or shells are called energy levels.
2) While revolving in these discrete orbits the electrons do not radiate energy and this helps that the electrons do not crash into the nucleus.
3) These orbits or shells are represented by the letters K, L, M, N, ............... or the numbers n = 1, 2, 3 .....................