In the Solid-State Structure of Sodium Chloride, the Closest Distance

Multiple Choice

In the solid-state structure of sodium chloride, the closest distance between the centers of ions is observed ________

A) between adjacent sodium ions on the edge of the unit cell.
B) between adjacent chloride ions on the edge of the unit cell.
C) between adjacent sodium ions on the face and one corner of the unit cell.
D) between adjacent chloride ions on the face and one corner of the unit cell.
E) between all adjacent sodium and chloride ions.