Question

both the proton and the neutron have a mass of ________ but the mass of the electron is only _________ of the mass of the proton​

Answer 1

Answer:

both the proton and neutron have a mass of equal but the mass of the electrons is only equal of the mass of proton

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Answer 2

Answer:

both the proton and the neutron have a mass of  1amu   but the mass of the electron is only    $\frac{1}{1836}$amu   of the mass of the proton​.