If an atom were the size of a cricket ground (~100 m), the nucleus would be roughly the size of:
Aa football
Ba brick
Ca basketball
Da black pepper grain (a few mm)
Answer & Solution
Correct answer: D. a black pepper grain (a few mm)
The nucleus is about $10^{5}$ times smaller than the atom. Scaled to a 100 m cricket ground, the nucleus is just a few mm — like a black pepper grain. The atom is mostly **empty space**.
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