Carbon disulfide (CS₂) has a carbon (C) atom surrounded by two sulfur (S) atoms. Carbon has four valence electrons, and sulfur has six. Each sulfur atom shares a double bond with the central carbon atom, completing the octets of all three atoms. Carbon does not have any lone electron pair. Therefore, the molecular structure of CS₂ is linear.

The electronegativity of carbon is 2.55, and that of sulfur is 2.58. The electronegativity difference is 0.03. Therefore, the C-S bond is slightly polar. The directions of the two dipole moment vectors are equal and opposite. As a result, they cancel, making CS₂ nonpolar.