Chadwick bombarded that sheet with:
AAmber particles
BArgon particles
CAtomic particles
DAlpha particles
Answer & Solution
Correct answer: D. Alpha particles
1. Alpha particles were the standard projectile of the time.
2. He bombarded the beryllium sheet with alpha particles.
3. So the correct answer is alpha particles.
_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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