Sodium Oxide (Na₂O) Crystallizes in a Structure in Which the O^2-

question 17

Multiple Choice

Sodium oxide (Na₂O) crystallizes in a structure in which the O^2- ions are in a face-centered cubic lattice and the Na⁺ ions are in tetrahedral holes. What is the number of Na⁺ ions in the unit cell?

• A) 8
• B) 2
• C) 4
• D) 6
• E) none of these

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