22
QuizMultiple Choice

Atoms and Elements — Test

Question 22 • Physical Science

What experimental evidence led scientists to change from the previous model to this one?

Answer
A
Cathode rays were bent in the same way whenever a magnet was brought near them.
B
The colors of light emitted from heated atoms had very specific energies.
C
A few of the positive particles aimed at a gold foil seemed to bounce back.
D
Experiments with water vapor showed that elements combine in specific proportions.
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