Question Detail

PHY 104 PHY 104 Past Questions Objective Question
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Question

Rutherford carried out experiments in which a beam of alpha particles was directed at a thin piece of metal foil. From these experiments he concluded that:
Options
A electrons are massive particles.
B the positively charged parts of atoms are extremely small and extremely heavy particles.
Correct Answer
C the diameter of an electron is approximately equal to that of the nucleus.
D electrons travel in circular orbits around the nucleus.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Rutherford's gold foil experiment showed that most of the atom is empty space, and that the positive charge and most of the mass are concentrated in a small, dense nucleus.

Hint

Rutherford discovered the nucleus.

Question Info

Course: PHY 104
Topic: PHY 104 Past Questions
Type: Objective
Difficulty: Not specified
Question 917 of 947
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