The electron
J. Thomson discovered the electron.
This particle was the electron in 1897 (J.J. Thomson).
John Joseph Thomson (J.J. Thomson)
JJ Thomson
he discovered electrons
JJ Thomson discovered electrons, which showed that atoms are not indivisible.
cathode ray-tube was discovered by J.J. thomson.
J.J. Thomson
J.J. Thomson.
J.J. Thomson
Joseph john Thomson
J. J. Thomson discovered the electron and the isotopes.