Multiple choice general knowledge science & technology

Who discovered existence of Neutron?

  1. Ernest Rutherford

  2. Neils Bohr

  3. James Chadwick

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

James Chadwick discovered the neutron in 1932, confirming its existence as a neutral particle in the nucleus. Rutherford had predicted the neutron's existence earlier but didn't discover it. Niels Bohr developed the Bohr model of the atom, and J.J. Thomson discovered the electron, not the neutron.

Keep practicing — related questions