The net potential energy between two adjacent ions, en, may be represented by en = -a/r + b/rn where a, b, and n are constants whose values depend on the particular ionic system. calculate the bonding energy eₒ in terms of the parameters a, b, and n using the following procedure: (1) differentiate en with respect to r, and then set the resulting expression equal to zero, since the curve of en versus r is a minimum at eₒ.(2) solve for r in terms of a, b, and n, which yields rₒ the equilibrium interionic spacing.(3) determine the expression for eₒ by substitution of rₒ into the above equation for en. what is the equation that represents the expression for eₒ?