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J.J. Thomson helped our understanding of the atom by discovering the existence of electrons in 1897. His findings showed that Dalton was incorrect about the atom being a solid sphere without having smaller parts. Thomson used a glass vacuum instrument called a cathode ray tube.
J.J. Thomson helped our understanding of the atom by discovering the existence of electrons in 1897. His findings showed that Dalton was incorrect about the atom being a solid sphere without having smaller parts. Thomson used a glass vacuum instrument called a cathode ray tube.