SHOW HANDWRITTEN WORK, STEP-BY--STEP AND SHOW WHICH ANSWER AND WORK CORRESPONDS TO WHAT NUMBER

2.18 The net potential energy between two adjacent ions, EN, may be represented by the sum of Equations 2.9 and 2.11; that is, (2.17) E=(-A/r)+B/(r^n) 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, because 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 substituting ro into Equation 2.17