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Rutherford directed alpha particles at a thin foil of:
AGold
BIron
CLead
DZinc
Answer & Solution
Correct answer: A. Gold
1. He wanted as thin a layer as possible.
2. The metal had to be beaten very fine.
3. He used a gold foil.
_Source: NCERT Class 9 Science, Ch 4 'Structure of the Atom'_
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