Roughly how many alpha particles rebounded?
AOne in 15000
BOne in 19000
COne in 12000
DOne in 21000
Answer & Solution
Correct answer: C. One in 12000
1. This was the most surprising observation.
2. Rutherford compared it to a shell bouncing off paper.
3. About one in 12000 rebounded.
_Source: NCERT Class 9 Science, Ch 4 'Structure of the Atom'_
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