this scientist is credited with discovering the first subatomic particle (electron) and proved part of…

this scientist is credited with discovering the first subatomic particle (electron) and proved part of daltons atomic theory wrong saying that there are particles smaller than an atom. a j.j. thomson b robert millikan c sir thomas edison d sir william crookes

this scientist is credited with discovering the first subatomic particle (electron) and proved part of daltons atomic theory wrong saying that there are particles smaller than an atom. a j.j. thomson b robert millikan c sir thomas edison d sir william crookes

Answer

Brief Explanations:

J.J. Thomson discovered electrons (first subatomic particle) in 1897 through cathode - ray tube experiments. Dalton's atomic theory initially stated that atoms are indivisible. Thomson's discovery showed there are smaller particles (electrons) within atoms, disproving that aspect of Dalton's theory. Robert Millikan is known for the oil - drop experiment to measure the charge of an electron. Thomas Edison is an inventor (e.g., electric light bulb). William Crookes worked on cathode rays but did not discover electrons.

Answer:

A. J.J. Thomson