NaCl Unit Cell The radii of the ions is: r Na+ = 0.95 Е and r Cl-= 1.81 Е. Since the sodium ion is 52.5% the size of the chloride ion, we can predict that the chloride ions will occupy the lattice ...

The diagram shows both a unit cell with ion locations indicated (a) and a space filling model (b) of ionic hard spheres. The cohesive energy of NaCl is - 7.90 eV, with a Coulomb contribution of -8.85 ...

The NaCl (Sigma-Aldrich, 99.999%) was then evaporated thermally from a Knudsen cell at a temperature of 720 K onto the Au(111) surface held at room temperature.