Which of the following statements about Rutherford’s model of atom are correct?
  1. considered the nucleus as positively charged
  2. established that the α–particles are four times as heavy as a hydrogen atom
  3. can be compared to solar system
  4. was in agreement with Thomson’s model
(a) (i) and (iii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) only (i)

AcademicChemistryNCERTClass 9

Correct Answer: (a) (i) and (iii)

Explanation: According to the Rutherford model, a central positively charged nucleus is present in the atom and electrons revolve around it. This model is similar to the solar system so also called the planetary model. 

Updated on 10-Oct-2022 13:32:55