Here's why:

* Linear Geometry: CS₂ has a linear molecular geometry. This means the molecule is straight, with the carbon atom in the center and the two sulfur atoms on either side.

* Hybridization: The carbon atom in CS₂ undergoes sp hybridization. This results in two sp hybrid orbitals that are oriented 180° apart. These orbitals form sigma bonds with the two sulfur atoms.

* No Lone Pairs: The central carbon atom has no lone pairs of electrons. This allows the molecule to maintain its linear geometry.

Therefore, the bond angle in CS₂ is 180°.