Rutherford designed an experiment to determine the structure of an atom. Answer the following in relation to this experiment: (a) Name the element he selected for this purpose. (b) Which subatomic particle were used by him?

CBSE Class 9 CBSE Class 9 Science
1

Rutherford designed an experiment to determine the structure of an atom. Answer the following in relation to this experiment:
(a) Name the element he selected for this purpose.
(b) Which subatomic particle were used by him ?
© What was the drawback of Rutherford’s model of the atom ?

2

(a) Gold.
(b) Doubly charged helium ions or alfa-particles.
© Could not explain the stability of atom.