Question

what are the postulates of bohr model of antom​

Answer 1

) An electron can revolve around the nucleus in certain fixed orbits of definite energy without emission of any radiant energy. Such orbits are called stationary orbits.

2) An electron can make a transition from a stationary state of higher energy E2 to a state of lower energy E1 and in doing so, it emits a single photon of frequency,

ν=E2−E1h where h is the Planck's constant.

Conversely, on absorbing an energy, E2−E1 when the electron is at energy E1, the electron can make a transition from E1 to E2.

3) Only those orbits are allowed for which the angular momentum of the electron is an integral multiple of h2π,

Thus, L=nh2π where n=0,1,2,

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Answer 2

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Postulates of Bohr's Model of an Atom

In an atom, electrons (negatively charged) revolve around the positively charged nucleus in a definite circular path called as orbits or shells. Each orbit or shell has a fixed energy and these circular orbits are known as orbital shells.

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