In the Rutherford’s experiment of alpha ...

In the Rutherford’s experiment of alpha particles scattering on thin gold foil, in 1911, it was found that only ion `alpha`-particle among, 20,000 was deflected through `180^@`. This was due to

direct encounter with the foil

envisage the strong repulsive force of the. very high positive field of the nucleus.

encounter with free electrons in the foil

direct encounter with the tiny weighty nucleus of extremely high density

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