What is the structure of Sodium Chloride?
Conventially NaCl has a crysttaline lattice structure (if you take it in a plane ax+by+cz+d~0), with Cl ion surrounding the Na positive ion. On a larger scale NaCl comprises a 3-d structure, say cubicle in which Na ions are conventially taken at the corners of the cube. This structure is very stable and drastic conditions are required to break it down.
