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CHM 101 CHM 101 Past Questions Objective Question

Question

What is the significance of the behaviour of particles in the gold foil experiment?
Options
A It shows that some of the particles were negatively charged
B It shows that some of the particles were positively charged
Correct Answer
C It shows that some of the particles were neutral
D It shows that some of the particles were negatively charged
Correct Answer

Option B is the correct answer.

Detailed Explanation

In the gold foil experiment, most alpha particles passed straight through, but some were deflected at large angles. This indicated that atoms have a small, dense, positively charged nucleus that repelled the positively charged alpha particles.

Hint

Alpha particles are positively charged; deflection indicates repulsion by a positive nucleus.

Question Info