Multiple choice general knowledge science & technology

Who invented the electron

  1. Richard Laming

  2. Rutherford

  3. J. J. Thomson

  4. Hizenburg
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

J.J. Thomson discovered the electron in 1897 through his experiments with cathode rays at the Cavendish Laboratory, Cambridge. He measured the charge-to-mass ratio (e/m) of electrons and proposed the 'plum pudding' model of the atom. For this discovery, he was awarded the Nobel Prize in Physics in 1906. The other options are incorrect: Laming was an earlier theorist, Rutherford discovered the nucleus, and Heisenberg developed quantum mechanics.

Keep practicing — related questions