The total number of subatomic particles is three, they are proton, neutron, and electron.Atom as a whole is electrically neutral. But the charge on Electron is negative, Neutral in Neutron, and positive in the proton. Charge on One mole of an electron can be calculated as:1 mole = 6.022 x 1023 atomsand charge of one electron = 1.6022 x 10-19 CTherefore, the charge of one mole of electrons = 1.6022 x 10-19 x 6.022 x 1023  = 9.65 x 104 C.