Final answer:
The central carbon atom in CS2 has two double bonds with sulfur atoms, constituting two regions of electron density and resulting in sp hybridization.
Step-by-step explanation:
The hybridization of the central atom in CS2 is determined by the number of regions of electron density around it. In CS2, the carbon atom (which is the central atom) has two double bonds, one with each sulfur atom. This would mean there are two regions of electron density – the two double bonds. Any central atom with two regions of electron density is sp hybridized. Therefore, the central carbon atom in CS2 exhibits sp hybridization.
The central atom in CS2 is carbon (C). To determine the hybridization of the central atom, we need to count the number of regions of electron density around it. In CS2, there are two double bonds between carbon and sulfur atoms, resulting in two regions of electron density. Based on this, the hybridization of the central carbon atom in CS2 is sp.