Which of the three subatomic particles has the smallest mass?

For simplicity, we will use the amu unit for the three subatomics. Both neutrons and protons are assigned as having masses of 1 amu each. In contrast, the electron has a negligible mass of . 0005 amu.

Subatomic Particles and Charges

Atoms are made of there subatomic particles, each with their own charge. Protons are positively charged particles found in the nucleus of the atom. Along with protons, we also find neutrally charged particles called neutrons. Orbiting the nucleus, we find the negatively charged electrons.