Question 8.3: Predict the shape of a hexachlorophosphate ion, PCl6^–....
Predict the shape of a hexachlorophosphate ion, PCl_{6}^{–}.
Step-by-Step
The Lewis formula for a PCl_{6}^{–} ion is
\begin{bmatrix} :\overset{..}{\underset{|}{Cl}}: \\ :\overset{..}{\underset{..}{Cl}}_{_{\diagdown }} \qquad _{_{\diagup }}\overset{..}{\underset{..}{Cl}} : \\ P \\ :\overset{..}{\underset{..}{Cl}}^{^{\diagup }} \qquad ^{^{\diagdown }}\overset{..}{\underset{..}{Cl}}: \\ :\overset{|}{\underset{..}{Cl}}: \end{bmatrix}^{\circleddash }The six covalent bonds are directed toward the vertices of a regular octahedron, and we predict (correctly) that a PCl_{6}^{–} ion is octahedral.
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