if charge on an electron is 1.6*10^-19.find free charge on litum^+ (positive) ion.

Given charge of an electron=-1.6*10^-19 C

Now we need to calculate the value of free charge or value of The formal charge of the given Li+ ion.

Now Formal charge= V-B-(N/2),

where V=Valence electron in a free atom

B= No.of electrons shared in covalent bonds

N=No. of electrons in a lone pair


In case of Li+ ion V=1, N, and B=0

Now Formal charge of Li+ ion =1

Free charge of Li+ ion = 1.6*10^19 C