Question

In a sodium chloride lattice, which among the following positions of the cube are occupied by chloride ion if sodium ion is in the center?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (A), (C), (D)

The correct options are
A 1
C 3
D 4

In NaCl, ${\text{Cl}}^{-}$ exists in a face centered cubic (FCC) lattice structure.


Thus, chloride ions occupy the corners (position 1) and face centers (positions 3 and 4) of the cube. While, sodium ions occupy the edge centres (position 2) and the center of the cube.