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AP Chemistry
2.7 VSEPR and Hybridization
2.5 Lewis Diagrams
IntermediateMCQConceptual23k
A Lewis structure centered on a Xe atom. Exactly four single bonds extend orthogonally from the central Xe atom to four surrounding F atoms arranged at 90-degree intervals (top, bottom, left, right). Each of the four F atoms has exactly three lone pairs of dots drawn on its outer perimeter, with no lone pairs drawn between the F and Xe atoms. The central Xe atom carries exactly two lone pairs of dots, with one pair positioned in the upper-left quadrant between the top and left bonds, and the other pair positioned in the lower-right quadrant between the bottom and right bonds. The diagram contains exactly 36 valence electrons total (8 bonding electrons and 28 nonbonding electrons). No formal charges, brackets, or other annotations appear.
Lewis diagram for \(\text{XeF}_4\).
A student draws the Lewis diagram shown below for xenon tetrafluoride (\(\text{XeF}_4\)). Which of the following claims best describes the predicted \(\text{F}-\text{Xe}-\text{F}\) bond angles in \(\text{XeF}_4\) and provides the correct justification?

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