Question

The fundamental sub-atomic particle called neutron was discovered by

Answer 1

Neutrons:

1. In 1932 James Chadwick discovered neutral particles called neutrons.
2. When he bombarded a thin sheet of Beryllium (Be), alpha particles having a mass slightly greater than that of protons were emitted.
3. He named these particles neutrons.

Hence, the fundamental sub-atomic particle called neutron was discovered by James Chadwick.