The structure of crystals may be studied by diffractometry.
First it is necessary to determine the impurities in NaCl; by difference the total percentage of NaCl is obtained.
The coordination number is six for Na in NaCl.
In order to determine this, it is necessary to know what solution we are looking at. One we know that we can look at the grams in a mole of the substance and determine the percentages based on molecular weight.
NaCl forms an ionic crystal structure rather than molecules.
The crystalline structure of sodium chloride is face-centered cubic.
Because they have same structure.(Rock salt structure)
It's not possible to draw here.
See the Web Links to the left of this answer for diagrams of the structure. This structure is called the "NaCl Structure"! Several other ionic compounds have the same structure, but it is named after NaCl since that is such a common compound.
Sodium chloride is crystalline - a face-centered cubic structure.
It is a face-centered cubic lattice.
Face-centered cubic crystalline structure.
Sodium chloride has a face-centered cubic structure.