Six Electron Domains

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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