sub-atomic would indicate that it would be found inside an atom.
A colloid is not a subatomic particle.
The lightest subatomic particle is the electron.
The subatomic particle that has no charge is a neutron.
A negatively charged subatomic particle is an electron, or the antiproton.
The electron is the subatomic particle with a negative charge.
particle whose dimensions is less then that of atom are said to be subatomic particle . they may be charged or uncharged .eg neutron is uncharged subatomic particle where as electron ,proton , positron are charged subatomic particle.
Subatomic particle
The subatomic particle with a negative charge is called an electron.
An "element" is not a subatomic particle. Your question makes no sense and is therefore unanswerable.Another answer:Since an element is not a subatomic particle, the only answer can be a proton.
Molecules are not subatomic particles.
It would look very small because subatomic particles are small.
electronThe only radioactively stable subatomic particle is an electron.