3
RCMultiple Choice

Speed and Velocity — Cumulative exam

Question 3 • AA-F26 Physical Science

How does Rutherford’s model of the atom compare with Thomson’s model?

Answer
A
They both describe atoms as small, indivisible spheres.
B
They both describe electrons as moving around the nucleus.
C
They both describe electrons as being surrounded by the positive matter.
D
They both describe atoms as being made up of positive and negative matter.

Explanation

Thomson’s model pictured negative electrons embedded in a region of positive matter. Rutherford’s model placed positive charge in a small nucleus, with electrons outside it. Although the models differ in how these parts are arranged, both describe atoms as containing positive and negative matter, so the correct choice is “They both describe atoms as being made up of positive and negative matter.”

AI-written and checked against the verified answer.

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