In NaCl molecule, the interaction potential between Na ion and Cl ion fits the following equation:1.

in this equation (1), the first term hammer is the coulomb potential,the second term results from the distribution of other electrons in the system.

The equilibrium position between the two ions is where the potential is minimum:2.

the root of this equation gives the r₀ bond length.experimental for NaCl =1.09*10³ eV,q=0.33 A and e² =14.4 A eV

Write the c ++ program that calculates the bond length in A using the constant (using NEWTON-RAPHSON-METHOD) and also analytical solution please.

1.V(r) = -e?/r+a*e"/ 2.f(r) = -dV dr = e/p2-a/*e-1/P = 0