Q2 of 43 Page 26

Rutherford’s ‘alpha (α) particles scattering experiment’ resulted into discovery of

Rutherford designed an experiment in which the fast-moving alpha particles were made to strike a very thin gold foil. Alpha particles were deflected by sub-atomic particles in the gold atoms.

More from this chapter

All 43 →
1

Which of the following correctly represents the electronic distribution in the Mg atom?

 3

The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element?

 4

Dalton’s atomic theory successfully explained

(i) Law of conservation of mass


(ii) Law of constant composition


(iii) Law of radioactivity


(iv) Law of multiple proportions

 5

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