Question

"The atom as a whole is electrically neutral", is a statement proposed by which atomic model?

• A. Thomson's atomic model
• B. Goldstein's atomic model
• C. Chadwick's atomic model
• D. None of the above

Answer 1

The correct option is A Thomson's atomic model

Thomson proposed that :

• An atom consists of a positively charged sphere and the electrons are embedded in it. Thus, the atom is visualized as a pudding or cake of positive charges with raisins (electrons) embedded into it. Hence it is the raisin pudding model or watermelon model.
  
• The negative and positive charges are equal in magnitude. So that atoms as a whole are electrically neutral.