Below 24.5 k, ne is a crystalline solid with an fcc structure. the interatomic interaction energy per atom can be written as ev14511(ev/atom) where and ơ are constants that depend on the polarizability, the mean dipole moment, and the extent of overlap of core electrons. for crystalline ne, 1-3121 x 10-3 ev and ơ 0.274 nm. a. show that the equilibrium separation between the atoms in an inert gas crystal is given by ro (1.090)o. what is the equilibrium interatomic separation in the ne crystal? b. find the bonding energy per atom in solid ne c. calculate the density of solid ne (atomic mass 20.18).