Question

Choose the correct option from the following options given below :

• A. In the ground state of Rutherford's model electrons are in stable equilibrium. While in Thomson's model electrons always experience a net-force.
• B. An atom has a nearly continuous mass distribution in a Rutherford's model but has a highly non-uniform mass distribution in Thomson's model
• C. A classical atom based on Rutherford's model is doomed to collapse.
• D. The positively charged part of the atom possesses most of the mass in Rutherford's model but not in Thomson's model

Answer 1

Answer: (C)

According to Rutherford, $e ^{-}$revolves around nucleus in circular orbit. Thus $e ^{-}$is always accelerating (centripetal acceleration). An accelerating change emits EM radiation and thus $e ^{-}$ should loose energy and finally should collapse in the nucleus.