Question:
Which one of the following particles in the nucleus of an atom was discovered by J. Chadwick?
Which one of the following particles in the nucleus of an atom was discovered by J. Chadwick?
Options:
- a) Electron
- b) Proton
- c) Positron
- d) Neutron
- a) Electron
- b) Proton
- c) Positron
- d) Neutron
correct answer : d)
Explanation:
The neutron was discovered by James Chadwick in 1932 by bombarding beryllium with alpha particles.
The neutron was discovered by James Chadwick in 1932 by bombarding beryllium with alpha particles.