Question

mention mass of neutron and proton

Answer 1

The mass of an electron is only about 1/2000 the mass of a proton or neutron, so electrons contribute virtually nothing to the total mass of an atom. Electrons have an electric charge of \(-1\), which is equal but opposite to the charge of a proton, which is \(+1\).

Answer 2

Mass of neutron = 1.674 × 10^-27 kg

Mass of proton = 1.672 × 10^-27 kg


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