When some Cl⁻ ions in NaCl are replaced by O²⁻ ions

CHEMISTRY · Subjective · AP · Chemistry · Compound Structure and Properties · Compound Structure and Properties

Problem

When some Cl⁻ ions in NaCl are replaced by O²⁻ ions, the crystal often forms cation vacancies. Briefly explain why these cation vacancies are necessary to maintain charge balance in the lattice.

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