Write Postulates of Bohr atomic theory

Dear Student,

The Postulates of bohr atomic model are :

1) electrons revolve round the nucleus only in certain permissible circular orbirts , also called shells.

2)each orbit is associated with a definate energy.

3) the energy of an electron remains constant as long as it revolves in a given orbit.

4)when electron absorbs energy, it jumps from a low -energy level to a high-energy level.

5)but, electron at higher energy level is unstable . so, it jumps from higher energy level to lower energy level and gives out energy

Regards