C, the Calculate the net potential energy for a Hg2+ and s2-ion pair, given that n= 10.5 and b = 1.7762 * 10-119 N.m 10. The ionic radius of the Hg2+ ion is 0.110 nm, and the ionic radius of the s2-ion is 0.174 nm. Assume the charge on one electron to be 1.60 x 10-19 permittivity of free space to be 8.85 x 10-12 c2/(Nm2. The net potential energy between the Hg2+ ion and the 52- 3.36 x 10 ion is -18 J