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Question

The Rutherford's α particle experiment shows that most of the α particles pass through the foil almost unscattered, while some are scattered through large angles. What conclusion can be drawn from this, about the structure of atom?

A
Most of the atom is hollow.
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B
The whole mass of the atom is concentrated in a small center called nucleus.
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C
Nucleus is positively charged.
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D
All of the above
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Solution

The correct option is D All of the above
Most of the α particles pass through the foil almost unscattered. This implies that most of the atom is hollow with its mass is concentrated at its centre.
Also, a few α particles are deflected through large angles indicating the presence of force of repulsion between the nucleus and α particles. This, in turn, implies the presence of positive charge in the nucleus.

Hence, (D) is the correct answer.

Why this Question ?This question will give you clear idea on atom and α- particle scattering experiment by Rutherford.

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