what is charge of 1 electron? what is mass of 91 electron?
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The charge on a single electron is -1.6 x 10 -19 Coulomb. The charge on a single proton is +1.6 x 10 -19 Coulomb. The quantity of charge on an object reflects the amount of imbalance between electrons and protons on that object.
I don't know the answer for ' WHAT IS MASS OF 91 ELECTRON ' sorry .
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