Question

the kinetic energy of the electron in the nth orbit of an atom is given by the relation

Answer 1

The electron can jump from one stationary orbit to another. If it jumps from an orbit of higher energy E2 to anorbit of lower energy E1, it emits a photon. ... Equations (i) to (iv) give various parameters of the atom when the electron is in the nth orbit .Theatom is also said to be in the nth energy state in this case.