SeF6 - Selenium Hexafluoride:

First draw the Lewis dot structure:
SeF6 Lewis Structure
Electron geometry: octahedral. Hybridization: sp3d2

Then draw the 3D molecular structure using VSEPR rules:

The molecular geometry of SeF6 is octahedral with symmetric charge distribution on the central atom.
Therefore this molecule is nonpolar.

Selenium Hexafluoride on Wikipedia.

Back to Molecular Geometries & Polarity Tutorial: Molecular Geometry & Polarity Tutorial.

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