What do you think would be the observation if the a-particle scattering experiment is carried out using a foil of a metal other than gold ?

Ans. If experiment is carried out by using a foil of some other metal, then results would not have been such as most of the a-particles will be deflected back. Gold can be beaten to an extremely thin sheet as it is extremely malleable metal. With the use of extremely thin gold foil, Rutherford could predict that, “Most of the space inside the atom is empty and nucleus is positively charged occupying a small volume within the atom”.

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