Question

Prior to Thomson's discovery, the atom was thought to be indivisible. Explain the significance of Thomson's concept of the electron.

Answer 1

Thomson hypothesized that atoms looked like plum-pudding/raisin bread. He thought that electrons were stuck onto the atom like raisins in raisin bread, unlike previous theories that say atoms were single units and looked like pool balls (Dalton's theory).

Answer 2

Thank you, I was really confused!!!