what is absolute mass and charge of an proton ,neutron and elrctron

The absolute mass of an electron is 9.108 x 10^-28 gram(1/1837a.m.u.) and the charge on it is 1.6 x 10^-19 coulomb of negative charge.The absolute mass of a proton is 1.6 X 10^-24 gram(1a.m.u.) and the charge on it is 1.6 x 10^-19 coulomb of positive charge.The absolute mass of a neutron is 1.6 X 10^-24 gram,same as proton and it does not carry any charge(it is neutral).