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(C) In Rutherford's $\alpha$-particle scattering experiment,the fact that a few $\alpha$-particles undergo large-angle deflection indicates that the p

Vedclass · Accepted Answer

Both $(1)$ and $(2)$.

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(C) In Rutherford's $\alpha$-particle scattering experiment,the fact that a few $\alpha$-particles undergo large-angle deflection indicates that the positive charge and mass of the atom are concentrated in a very small volume called the nucleus. The large-angle deflection is due to the electrostatic repulsion between the positively charged $\alpha$-particle and the positively charged,dense,and heavy nucleus. Therefore,both the heavy nature and the small size of the nucleus are responsible for this observation. Thus,the correct option is $(C)$.

The deflection of a few $\alpha$-particles when bombarded on a thin gold foil indicates that $.......$

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