The charge of the electron is a fundamental magnitude. It is the elemental charge (nothing can hava a fraction of this charge):
Charge of one electron = - 1.6 * 10 ^ - 19 C
So, if the object losses 21.7 * 10 ^ 19 electrons it has lost
21.7 * 10^ 19 * * -1.6 * 10^ - 19 C = - 34.72 C
So, lossing this negative charge, leaves the object with a positive charge of 34.72C.
Answer: + 34.72C
