Question

give the main postulate of Bohr's model of an atom

Answer 1

The important postulates in his theory are, Electrons revolve round the nucleus with definite velocities in concentric circular orbits situated at definite distances from the nucleus. The energy of an electron in a certain orbit remains constant. As long as it remains in that orbit, it neither emits nor absorbs energy.

Answer 2

Hey friend the answer will be..

He said that in the middle of the atom there is a nucleus that is a positive charges surrounded by negative charges
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