Question

give two postulates and two defect of Bohr's atomic model​

Answer 1

Explanation:

Rutherford–Bohr model or Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction provided by electrostatic forces in place of gravity.

Answer 2

Explanation:

1. only certain such special orbits are known as discrete orbits of electrons are allowed inside the atom

2. why revolving in this discrete orbits the electrons do not radiate energy.

there are no defects in Bohr's model of an atom....