CSe2 - Carbon Diselenide:

First draw the Lewis dot structure:
CSe2 Lewis Structure
Electron geometry: linear. Hybridization: sp

Then draw the 3D molecular structure using VSEPR rules:

The molecular geometry of CSe2 is linear with symmetric charge distribution on the central atom.
Therefore CSe2 is non-polar.

Carbon Diselenide on Wikipedia.

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

For homework help in math, chemistry, and physics: www.tutor-homework.com.