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## Homework Statement

A nickel coin has a mass of about 4.3g. Each mole (6.02e23 atoms) has a mass of about 58.2g

## Homework Equations

I found the number of electrons on each coin, which is 1.245e24 and also the number of atoms on the coin which is 4.447e22.

## The Attempt at a Solution

Now I have to find the magnitude of the charge of all of these electrons. I just started phys part two and need help. I Know that the C constant is, and I think I have to use the F=Q1Q2/r2but I can't come up with the solution