Question

Why did the discovery of neutrons came very late?

• A. Neutrons are present in nucleus
• B. Neutrons are highly unstable particles
• C. Neutrons are charge less
• D. Neutrons do not have

Answer 1

The correct option is D

Neutrons are charged less

Lets try to recall how electrons and protons were discovered.

• Cathode ray experiment was used for electron discovery
• The canal ray experiment was used for proton discovery

In both experiments, the results were observed because electrons and protons were charged particles.

As the neutrons are neutral particles, the scientists were unable to observe neutrons. Therefore, its discovery came very late.