Question

which of daltons ideas about the atom did j.j. thomsons experiment disprove? it disproved that atoms are divisible. it disproved that atoms are indivisible. it disproved that atoms contain protons. it disproved that atoms contain electrons.

Explanation:

Dalton thought atoms were indivisible. Thomson's cathode - ray tube experiments discovered electrons, showing atoms have sub - atomic particles, thus disproving atom indivisibility.

Answer:

It disproved that atoms are indivisible.