Question

Write a short note on BOHR'S model of atom.

Answer 1

Bohr's model of atom--------------------~~~~~~~~~~~~~~

1. electrons revolve around the nucleus in a definite energy level or shell named as K,L,M,N,O.........
2. electrons are stationary i.e.each electron can rotate in its particular shell .
3. only 200 bits are permitted which have angular momentum value equals to ---

$\frac{nh}{2\pi}$

Where

n = number of shell ,

m= mass of atom,

h= Planck's Constant

r= radius of atom

4. electrons can emit or absorb energy when they change their position or number of shell in an atom