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hemistry.com/myctfitemView?assignmentProblemID-93466181& offset-next eometryI previous 4 of7next What is the molecular geometry of a molecule with 4 outer atoms and 1 lone pair on the central atom? Enter the molecular geometry of the molecule. Hints e describes the three- This is in contrast to bes the shape of all number of regions of er, determines the Submit ty Answers Give Up Part B What is the molecular geometry of a molecule with 4 outer atoms and 2 lone pairs on the central atom? Enter the molecular geometry of the molecule Submit My Answers Give Up Part C What is the molecular geometry of a molecule with 3 outer atoms and 2 lone pairs on the central atom? Enter the molecular geometry of the molecule Hints Submit My Answers Give Up 13 PM

Explanation / Answer

Part A

The electron geometry of the molecule with 4 outer atoms and one lone pair ( total 5 electrons pairs ) is trigonal bipyramidal.

The molecular geometry is SEE-SAW with one loen pair occupying the equatoraial position and 4 atoms , two in equatorial and two in axial .

So the structure is see-saw.

Example SF4

Part B

The molecule has 4 outer atoms and two lone pairs.

Thus the total pairs of electrns = 6 (4 bonded pairs + 2 lone pairs) thus the electron geometry is octahedral.

The geometry of molecule is SQUARE PLANAR with the two lone pairs occupying the axial positions and the atoms in square planar positions.

Example XeF4

Part C

The molceule has 3 outer atoms and 2 lone pairs.

Thus has total 5 electrons pairs whose geometry is trigonalbipyramidal.

The molecular geometry is T- SHAPED with the two lone pairs occupying the equatorial positions and 3 atoms , one at equatorial , two at axial positions.

example. ClF3

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