Question

what is the closest bond angle around the central atom in the cs₂ molecule? 90° 120° 109.5° 180°

Explanation:

Step1: Determine the central atom

The central atom in \(CS_2\) is \(C\).

Step2: Calculate the valence - electron pairs

Carbon has 4 valence electrons. Each sulfur atom forms a double bond with carbon. So, the number of electron - pair groups around the central \(C\) atom is 2 (two double bonds).

Step3: Apply VSEPR theory

According to VSEPR (Valence - Shell Electron - Pair Repulsion) theory, when the number of electron - pair groups (\(n = 2\)) around a central atom, the molecular geometry is linear.

Step4: Determine the bond angle

For a linear geometry, the bond angle is \(180^{\circ}\).

Answer:

\(180^{\circ}\)