Question

Two positive ions, each carrying a charge q, are. separated by a distance d. If F is the force of repulsion between the ions, the number of electrons missing from each ion will be:

Answer 1

If q is the positive charge on each ion separated by a distance 'd'.Then the Coulomb's force between the charges is given by,

F=kq2d2=14π∈0q2d2
or q2=F×4π∈0d2 Or
q=4π∈0Fd2 Now, q=newhere,
n=number of electrons and e=charge on electronSo
, n=q/e =4π∈0Fd2e or n=4π∈0Fd2/e2
Hope you got the idea