Question

Sodium oxide $N{a}_{2}O$ is a crystalline solid, It has:

• A. Antifluorite structure
• B. $N{a}^{+}$ ions are present at body diagonals
• C. $N{a}^{+}$ ions are present at tetrahedral voids
• D. $O^{2-}$ ions are present at octahedral voids

Answer 1

The correct option is A Antifluorite structure

$N{a}^{+}$ are present at all tetrahedral voids.

$O^{2-}$ forms the FCC lattice.

This type of structure is known as Antifluorite structure.