Question

Name the scientists who were responsible for the following scientific development:
The existence of protons in an atom.

Answer 1

Protons:

1. Protons are positively charged particles in an atom.
2. Ernest Rutherford is credited with discovering the proton in 1917.
3. He demonstrated that the nucleus of the hydrogen atom (i.e. a proton) is present in the nuclei of all other atoms.

Hence, the existence of protons in an atom was discovered by the scientist Ernest Rutherford.