From his experiments, J. J. Thomson concluded that
cathode ray particles can move at very fast speeds.
cathode ray particles can be moved by electric current.
atoms contain small positively charged particles that are called protons.
atoms contain small negatively charged particles that are called electrons

Question

From his experiments, J. J. Thomson concluded that
cathode ray particles can move at very fast speeds.
cathode ray particles can be moved by electric current.
atoms contain small positively charged particles that are called protons.
atoms contain small negatively charged particles that are called electrons

disco619 · Answer

And the question is?

disco619 · Answer

Oh are these options?

disco619 · Answer

This is a Physics Question, Js. Sorta..

anonymous · Answer

Well the answer would be D: atoms contain small negatively charged particles that are called electrons

He found them after experimenting with a cathode ray tube.

Hope that helped a bit :D