Question

what is the magnitude of charge on an electron​

Answer 1

The charge of an electron is equivalent to the magnitude of an elementary charge(e) but bearing a negative sign. The charge of an electron is -1.602×10^(-19) c.

Answer 2

Fundamental physical constant representing the naturally occurring unit of electric charge, equivalent to 1.602176634 *10^-19 coulomb (symbol e).

The electric charge carried by a single proton, or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge 1 e, is known as the elementary charge. This fundamental physical constant is the elementary charge.