2 Ionic Bonding Energy [8 points total] The potential energy (in eV) between two hypothetical adjacent ions,X+andY, is represented by the sum of the attractive and repulsive energies: \[ E_{N}=-\frac{2.384}{r}+\frac{1.879 \times 10^{-5}}{r^{10}} . \] a. Using your favorite plotting software, superimposeEN,EA, andER(ineV) as a function ofrup to1.0 nm. Be sure to label the axes as well as each potential energy curve. [4 points] b. Graphically determine the equilibrium spacing and the magnitude of the bonding energy betweenX+andY. Briefly describe how you determined these values from your plot. [2 points] c. Mathematically calculate the equilibrum spacing and bonding energy, and compare to your graphical results from part (b). [2 point]