Which of the following statements about Rutherford’s model of atom are correct? (i) considered the nucleus as positively charged (ii) established that the α–particles are four times as heavy as a hydrogen atom (iii) can be compared to solar system (iv) was in agreement with Thomson’s model (a) (i) and (iii) (b) (ii) and (iii) (c) (i) and (iv) (d) only (i)
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Soln:
Answer is (a) (i) and (iii)
Explanation:
Positively charged alpha particles were deflected by nucleus. This shows nucleus is positively charged. Rutherford also postulated that electrons are arranged in an atom around the nucleus like planets arranged around sun.
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