Question

Explain Bohr sommerfled model of an atom?(plz explain in simple way)

Answer 1

Bohr explained in his model of atom that atom consists of a central region of positively charged protons and neutrally charged neutrons together called nucleus and the electrons revolve around it in discrete orbits

Answer 2

actually bohr is main scientist who postulate the atomic structure. they give following concept which helpful in atomic structure.
1) electron move around the nucleus in circular path called orbit , each having a particular amount of energy .the energy of orbit increases as the distance of orbit from nucleus increases .

2) an electron doesn't radiate energy as long as it revolves in a particular orbit. it make a transition from one orbit to another, when it emits or absorb energy.

3) the angular momentum associated with an orbit is integral multiple of h/2pi
i.e. mvr=nh/2pi.

4) during revolution in an orbit, the necessary centripetal force is provided by the electrostatic force of attraction between electron and nucleus.
so,
mv^2/r=KZe^2/r^2