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Those particles that bounced back were deflected by nearly:
A180 degrees
B160 degrees
C140 degrees
D120 degrees
Answer & Solution
Correct answer: A. 180 degrees
1. They came almost straight back towards the source.
2. They were deflected by nearly 180 degrees.
3. So the correct answer is 180 degrees.
_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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