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In Rutherford's planetary model, the nucleus is approximately how much smaller than the atom?
A10 times
B100 times
C10,000 times
D100,000 times (10⁵)
Answer & Solution
Correct answer: D. 100,000 times (10⁵)
The nucleus is about 10⁵ (one lakh) times smaller in diameter than the atom — comparable to a marble in the middle of a football stadium. This staggering ratio is why most alpha particles passed through gold foil undeflected.
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