VSEPR and Bond Hybridization

AP Chemistry· difficulty 3/5

PCl₅ (5 bonded Cl, no lone pairs on P) has what geometry?

A
$Square pyramidal$
B
$Trigonal bipyramidal (3 equatorial at 120°, 2 axial at 90° to equatorial)$
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C
$Tetrahedral$
D
$Octahedral$

Explanation

5 electron domains arrange trigonal bipyramidally. P expands its octet (uses d orbitals).

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