Question

Experimental evidence for the existence of the atomic nucleus comes from

(a)Millikan's oil drop experiment
(b) Atomic emission spectroscopy
(c) The magnetic bending of cathode rays
(d) Alpha scattering by a thin metal foil

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Answer 1

Heya here i m with your ans

☆ d) Alpha scattering by a thin metal foil

hope it helps u

Answer 2

The experimental evidence for the existence of the atomic nucleus comes from the "Alpha scattering by a thin metal foil." The correct answer is option D.

• We know that Rutherford is the scientist who performed the famous experiment of "Alpha scattering by a thin metal foil."

• In this experiment, Rutherford proved the existence of a positively charged region in the atom, which he felt was a small-sized solid portion residing in the 'atom.'

• Rutherford named this discovered region the 'nucleus.'

• In this experiment, Rutherford engaged the firing of the alpha particles aiming at a thin gold foil.

• He had observed the number of alpha particles scattered at various angles that a detector was counting.

• This famous experiment of "Alpha scattering by a thin metal foil" provided Rutherford the evidence for the existence of a positively charged and small-sized nucleus in the atom.

• Thus the experimental evidence for the existence of the atomic nucleus comes from the "Alpha scattering by a thin metal foil." The correct answer is option D.

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