Question

why electron is an atom are in motion and not in stationary?​

Answer 1

Answer:

If the electrons do not revolve round the nucleus then they will get attracted towards the nucleus due to the Coulombic forces, and the atom will not exist.

But as the atom exits in actual then we can say that is the force that counterbalances the Coulombic force and that force is 'Centrifugal force'. Hence, due to this centrifugal force the electrons remain in continuous motion.

Answer 2

Answer:

here is your answer mate

Explanation:

Electron is rotate around the nucleus because nucleus have a heavy part and positive charge of the atom so nucleus is stationary and then electron is light part and negative charge with respect to nucleus and not more energy so electron move around the nucleus.