Question

Which of the following statements is the limitation of Thomson’s atomic model?

• A. It failed to explain the electrical neutrality of an atom
• B. It failed to explain how the positive charges hold the negative charges in an atom
• C. The model could not explain the existence of electrons
• D. None of these

Answer 1

The correct option is B It failed to explain how the positive charges hold the negative charges in an atom

In Thomson’s atomic model, positive and negative charges are equal in magnitude. An atom has no charge and is electrically neutral. It was a postulate of the model.
The model cannot explain the stability of an atom i.e. how positive charges hold the electrons inside the atom.