Question

How did J. J. Thomson’s discovery affect the model of the atom?

A. It proposed that the positive charge was concentrated in the nucleus.

B. It proposed that electrons orbit the nucleus like the planets in the solar system.

C. It proposed the idea that electrons were mobile in the atom.

D. It proposed that atoms are mostly composed of empty space.

Answer 1

Based on the K12 test: C. It proposed the idea that electrons were mobile in the atom. is the correct answer.

Step-by-step explanation:

Answer 2

I believe the answer to this is C. :D