According to VSEPR theory, what are the electron geometry and molecular shape of the sulfur tetrafluoride (SF4) molecule?
Answer and explanation
Correct answer: D. Trigonal bipyramidal electron geometry and see-saw molecular shape
Sulfur has 6 valence electrons and forms 4 single bonds with fluorine atoms, leaving 1 lone pair (AX4E steric number = 5). The 5 electron domains adopt a trigonal bipyramidal electron geometry. To minimize lone pair-bonding pair repulsions, the lone pair occupies an equatorial position, resulting in a see-saw molecular shape.
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