Question

Which of the following conclusions was not made by JJ Thomson's Plum pudding Model of an atom?

• A. An atom is electrically neutral
• B. Atom consists of a positively charges sphere in which the positive charge is uniformly distributed over the atom.
• C. Electrons revolve in a circular orbits around the centre of an atom.
• D. None of the above

Answer 1

The correct option is C Electrons revolve in a circular orbits around the centre of an atom.

Thomson proposed that:
(i) An atom consists of a positively charged sphere and the electrons are embedded in it.
(ii) The negative and positive charges are equal in magnitude. So, the atom as a whole is electrically neutral.

Rutherford proposed that electrons revolve around the nucleus of an atom in circular orbits.