Question

what is bhor s postulates​

Answer 1

Explanation:

The Bohr's postulates -

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

E

2

to a state of lower energy

E

1

and in doing so, it emits a single photon of frequency,

ν

=

E

2

−

E

1

h

where

h

is the Planck's constant.

Conversely, on absorbing an energy,

E

2

−

E

1

when the electron is at energy

E

1

, the electron can make a transition from

E

1

to

E

2

.

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

h

2

π

,

Thus,

L

=

n

h

2

π

where

n

=

0

,

1

,

2

,

...

.

..