How is the structure of a NaCl crystal lattice determined and what properties does it exhibit as a result?

The structure of a NaCl crystal lattice is determined by the arrangement of sodium (Na) and chloride (Cl) ions in a repeating pattern. This pattern is based on the strong electrostatic attraction between the positively charged sodium ions and the negatively charged chloride ions.

As a result of this structure, NaCl exhibits properties such as high melting and boiling points, hardness, and brittleness. It also has a high solubility in water and conducts electricity when dissolved or melted.