SOF₄ - Sulfur Monoxide Tetrafluoride:

First draw the lewis structure:

Electron geometry: trigonal bipyramidal. Hybridization: sp³d

Second determine the 3D molecular geometry with VSEPR rules:
  Click and drag the molecle to rotate it.

Decision:
The molecular geometry of SOF₄ is trigonal bipyramidal with asymmetric charge distribution around the central atom.
Therefore SOF₄ is polar.

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