Mass of electron is 0.000548597 amu or 9.1into ten rays power minus 31 kgÂ
for proton 1.0072766 amu or 1.6726ten rays power minus 27 kgÂ
and it is 1837 time heavier than electronÂ
for neutrons 1.0086654amu or 1.6749ten rays power minus 27 kg and 1824 times heavier than electronÂ