Atomic particles
Protons and neutrons have approximately the same mass. However, one proton is about 1,835 times more massive than an electron. Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well.
Do all particles have the same mass?
The two subatomic particles that have the same mass are protons and neutrons. Neutrons and protons each have an atomic mass of about one atomic mass...
Which particle has approximately the same mass as a proton?
neutron: A subatomic particle forming part of the nucleus of an atom. It has no charge. It is equal in mass to a proton or it weighs 1 amu.
