Subatomic Particle Mass and Charge
Particle
Charge
Mass (amu)
Electron
-e
0.000549
Neutron
0
1.008665
Proton
+e
1.007277
Atomic mass unit (amu) = 1.66 X 10
-27
kilograms.
Particle charge (e) = 1.60 X 10
-19
coulomb.