Multiple Choice
Which of the following correctly represents the Lewis dot structure for neutral silicon monoxide (SiO)?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
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Which of the following statements correctly describes the Lewis dot structure of neutral OCl2 (dichlorine monoxide)?
A
The central oxygen atom has two lone pairs and forms single bonds with each chlorine atom.
B
Each chlorine atom has two lone pairs and forms a double bond with oxygen.
C
The central oxygen atom has one lone pair and forms double bonds with each chlorine atom.
D
The central oxygen atom has no lone pairs and forms single bonds with each chlorine atom.
Verified step by step guidance1
Step 1: Identify the total number of valence electrons in the molecule OCl\_2. Oxygen has 6 valence electrons, and each chlorine has 7 valence electrons, so total valence electrons = 6 + 2 \times 7 = 20 electrons.
Step 2: Determine the central atom. Oxygen is less electronegative than chlorine and typically forms the central atom in OCl\_2.
Step 3: Draw single bonds between the central oxygen atom and each chlorine atom. Each single bond accounts for 2 electrons, so 4 electrons are used in bonding.
Step 4: Distribute the remaining electrons as lone pairs to satisfy the octet rule. Place lone pairs on the chlorine atoms first to complete their octets, then place any remaining electrons as lone pairs on the oxygen atom.
Step 5: Verify the Lewis structure by checking that each atom has a complete octet and that the total number of electrons used equals the total valence electrons calculated in Step 1.
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