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Hey,

Thomson's experiments with cathode ray tubes helped hi discover the electron,
Which Dalton didn't know about.

Dalton also thought that particles were indivisible which was also proved wrong by Thomson when he discovered the existence of subatomic particles.

Hope this helps!
Brainliest is always appreciated if you feel its deserved. :)
springbreak50

Answer:

The theory stated that all matter is made of atoms that cannot be divided or destroyed.

It also explained that all atoms of a given element are identical in mass and properties.

Explanation:

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