Write down the postulates of Bohr atom model.

1.	Write down the postulates of Bohr atom model.
Answer» Answer :The energies of electrons are quantised The electron is REVOLVING around the nucleus in a certain fixed circular PATH called stationary orbit. Electron can revolve only in those ORBITS in which the angular momentum (mvr) ofthe electron must be equal to an integral multipleof ` h//2pi` . i.e.mvr` = nh//2pi` Where n = 1, 2, 3, . . . . etc. As LONG as an electron revolves in the fixed stationary orbit, it doesn't lose its energy. However, when an electron jumps from higher energy state `(E_(2))` to a lower energy state `(E_(1))` the excess energy is emitted as radiation . The frequency of the emitted radiation is `E_(2)-E_(1)=hv`and `v= ((E_(2)-E_(1)))/(h)` Conversely, when suitable energy is supplied to an electron, it will jump from lower energy orbit to a higher energy orbit .

Discussion