Questions: Draw the Lewis structure for a carbon monosulfide (CS) molecule.

Transcript text: Draw the Lewis structure for a carbon monosulfide (CS) molecule.

Solution

Solution Steps

Step 1: Determine the Total Number of Valence Electrons

Carbon (C) has 4 valence electrons, and sulfur (S) has 6 valence electrons. Therefore, the total number of valence electrons for the CS molecule is: \[ 4 + 6 = 10 \]

Step 2: Draw the Skeleton Structure

The skeleton structure of the CS molecule is simply C-S, with a single bond between carbon and sulfur.

Step 3: Distribute the Electrons

Place the remaining valence electrons around the atoms to satisfy the octet rule. Start by placing lone pairs on the sulfur atom: \[ \text{C-S:} \]

Step 4: Form Multiple Bonds if Necessary

Since the initial structure does not satisfy the octet rule for both atoms, we need to form multiple bonds. We can form a triple bond between carbon and sulfur: \[ \text{C}\equiv\text{S} \]

Step 5: Verify the Octet Rule

Check that each atom has a full octet: