These subatomic particles have very small masses. The mass of either proton or neutron is the same as that of the hydrogen atom, meaning that the mass of a proton or neutron is 1 as compared to that of an hydrogen atom while the mass of an electron is 1/1840.
Particles
|
Mass
|
Proton
|
1
|
Neutron
|
1
|
Electron
|
1/1840
|