Question

Who discovered electron?
JJ Thomson or William Crookes​

Answer 1

Answer:

Joseph John Thomson

Joseph John Thomson (J. J. Thomson, 1856-1940; see photo at American Institute of Physics) is widely recognized as the discoverer of the electron. Thomson was the Cavendish professor of Experimental Physics at Cambridge University and director of its Cavendish Laboratory from 1884 until 1919.

Answer 2

$\huge \underline\color{blue}Answer$

J.J Thomson

$\tt \underline \colorbox{yellow}{Hope it helps.}$