what was the fault or deffect in rutherfords atomic model

could not explain motion of electrons

Rutherford ''s atomic model suggested that electrons, in an atom, revolve around the nucleus. According to quantum theory, if a charged paricle revolves then it must continously radiate out energy. Hence, electron being a negatively charged particle, must radiate energy continously. As a result, its energy must go on decreasing and it must follow a spiral path and finally fall in the nucleus. The predicted time that a electron must take befoore falling in the nucleus, according to the above postulate, is equal to 10^-8. Hence, an atom must be very unstable, but practically, it is not so.