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AssignmentMultiple Select

The Progress of Scientific Knowledge

Question 2 • *26-27 CFISD TX-Chemistry A CR

Which of these statements is supported by the results of Thomson’s experiment? Check all of the boxes that apply.

Answer
A
Atoms are indivisible.
B
Cathode rays are made up of negatively charged particles.
C
Atoms contain negatively charged particles.

Explanation

Thomson observed that cathode rays bent toward a positively charged plate, showing that they consist of negatively charged particles. Because these particles came from atoms, the experiment also showed that atoms contain negatively charged particles. This evidence contradicted the idea that atoms are indivisible.

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