When alpha particles are sent through a thin metal foil, Chemistry

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When α -particles are sent through a thin metal foil, most of them go straight through the foil because (one or more are correct):

(1) Alpha particles are much heavier than electrons

(2) Alpha particles are positively charged

(3) Most part of the atom is empty space

(4)Alpha particles move with high velocity

Ans: Most part of the atom is empty space

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