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lana [24]
3 years ago
14

Which discovery did J. J. Thomson make that improved upon Dalton's atomic theory?

Chemistry
1 answer:
erik [133]3 years ago
3 0

Answer: Atoms contain tiny, negatively charged electrons

Explanation: Thomson's experiments with cathode ray tubes helped him to discover the electron (which Dalton did not know about). Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles.

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hope it helps you

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