What did jj thomas discover?

Answer 1

J.J.Thomas discovered that atoms have negatively charged particles called

electrons. He discovered this using the Cathode Ray. The cathode ray is a beam of electrons emitted by the cathode of an electrical discharged tube.

Answer 2

JJ Thomson discovered the electron in 1897 through his experiments with cathode rays. This discovery was a crucial step in the development of modern atomic theory and led to his creation of the plum pudding model of the atom.

Answer 3

he discovered electrons created a new problem to solve

Answer 4

In 1897 J.J. Thomson discovered the electron by experimenting with a cathode ray tube