Question

Q.1. write the mathematical expression for net potential energy between two adjacent ions in an ionic solid and describe the terms used in the expression

Answer 1

The mathematical expression for net potential energy between two adjacent ions in an ionic solid is:

EN = - A/r  + R/r^n

Where: 
r is the interionic separation and A, B , and n are constants
NOTE
Interionic separation refers to the distance between the nuclei of the two adjacent ions and is the sum of the ionic radii of the two ions.