Question

mass of an electron
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Answer 1

The invariant mass of an electron is approximately 9.109×10^−31 kilograms, or 5.489×10^−4 atomic mass units. On the basis of Einstein's principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV....

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Answer 2

Answer:

mass of an electron is 9.1×10^-31 kg

relative mass of an electron is 1/1840 a.m.u