The positively charged particles in an atomic nucleus are protons.
Then it must be a proton,
The name of a positively charged particle in the nucleus is proton.
This particle is the proton.
This particle is rejected.
"proton"
a proton
This particle from the atomic nucleus is the proton.
It will repel
It will repel
It will repel
protons
This particle is the proton.
This particle will be rejected.