Proton numbers equal the atomic number and is an identifier of a chemical element.
This particle was the electron (J.J.Thomson, 1897).
The neutron was discovered in 1932 by James Chadwick.
The number of protons equals the number of electrons.
Proton
The proton.
A colloid is not a subatomic particle.
This particle is the proton, equal to the atomic number.
This particle is the proton.
the number of protons
The lightest subatomic particle is the electron.
The subatomic particle that has no charge is a neutron.
proton