In an ionic compound such as NaCl, which consists of a fcc lattice of chloride ions, each sodium ion has ____ chloride ions surrounding it as nearest neighbors.

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In an ionic compound, cations are surrounded by anions and vice versa. A common arrangement of anions in an ionic compound is face-centered cubic (fcc) lattice. In a fcc lattice, each ion has 6 nearest neighbor ions arranged in an octahedral geometry. Therefore, each sodium ion in NaCl is surrounded by 6 chloride ions as nearest neighbors.

In an Ionic Compound Such as NaCl, Which Consists of a Fcc