The VSEPR Theory of Molecular Geometry

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Six electron domains around a central atom is known generally as octahedral and has three major variations you should know:

AX₆ - octahedral
AX₅E - square pyramidal
AX₄E₂ - square planar

AX₆ - Octahedral

Molecule	Lewis Structure	3-D Structure	Comments
SF6			octahedral

AX₅E - Square pyramidal

Molecule	Lewis Structure	3-D Structure	Comments
BrF5			square pyramidal

AX₄E₂ - Square planar

Molecule	Lewis Structure	3-D Structure	Comments
XeF4			square planar