Verified answer

Proton: electrical charge +1, mass = 1.672621637(83)×10−27 kg, relative mass = 1.00727646677 amu

Neutron: neutral, mass = 1.67492729(28)×10−27 kg, relative mass = 1.0086649156 amu

Electron: electrical charge -1, mass 9.10938215(45)×10−31 kg, relative mass 5.4857990943×10−4 amu

Relative Mass Of A Neutron

Relative Mass Of A Proton

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