Question

what is the mass of electron ,proton and nutron exactly in amu and kg ​

Answer 1

mass of electron = 0 amu

mass of proton = 1 amu

mass of neutron = 1 amu

Answer 2

mass of electron : 9.109*10-31 kg

5.489*10-4 amu

mass of proton : 1.6726*10-27 kg

mass of neutron :1.6749*10-27 kg

mass of proton in amu : 1.0072 amu

mass of neutron in amu : 1.0086 amu

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