## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

$q = 1.93\times 10^5~C$
There are 2 protons in each atom of helium. Each proton has a charge of $1.6\times 10^{-19}~C$. We can find the total charge of all the protons. $q = (1~mol)(2)(1.6\times 10^{-19}~C)$ $q = (6.02\times 10^{23})(2)(1.6\times 10^{-19}~C)$ $q = 1.93\times 10^5~C$