Atoms – Solutions

1) Choose the correct alternative from the clues given at the end of each statement:

(a) The size of the atom in Thomson’s model is ——–the atomic size in Rutherford’s model. (muc greater than/no different from/much less than)

(b) In the ground state of ——–electrons are in stable equilibrium, while in ——-, electrons always experience a net force. (Thomson’s ,model/Rutherford’s model)

(c) A classical atom based on ——-is doomed to collapse.

(Thomson’s model/Rutherford’s model)

Solution:

(a) The size of the atom in Thomson’s model is no different from the atomic size in Rutherford’s model.

(b) In the ground state of Thomson’s model, electrons are in stable equilibrium, while in Rutherford’s model, electrons always experience a net force.