Multiple choice general knowledge science & technology

Who discovered chargeless and massive particle?

  1. J.J.Thompson

  2. J. Chadwick

  3. J. Dalton

  4. Both 1 & 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

James Chadwick discovered the neutron in 1932. The neutron is a chargeless (neutral) and massive subatomic particle found in atomic nuclei. J.J. Thompson discovered the electron, and John Dalton proposed atomic theory.

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