Ionic bonds, of course, are governed by Coulomb's Law, which is this mathematical

equation that describes the electrostatic interaction between

the positively-charged cations and the negatively-charged anions.

Remember the Coulomb's law tells us that the force of attraction or

repulsion depends on the product of this constant, the charges, divided

by the product of the shielding factor, times the distance squared.

Of course for ionic compounds, the charges, they could

be plus one and minus one, or plus one and

minus two, or plus two and minus two, just

depending on the charges of the ions in the species.

Well, those charges would appear in the numerator of Coulomb's Law.