Problem: What is the formal charge on the sulfur atom in the resonance structure of SO2 that has one single bond and one double bond?a) +1b) -1c) -2

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We’re being asked to determine the formal charge on the sulfur atom in the resonance structure of SO2 that has one single bond and one double bond


To do so, we need to do the following steps:


Step 1: Determine the central atom in this molecule.

Step 2: Calculate the total number of valence electrons present.

Step 3: Draw the Lewis structure for the molecule.

Step 4: Calculate the formal charge for the indicated atom. 


Recall that the formula for the formal charge is:

F.C. = Group Number-(Bonds+Nonbonding e-)


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Problem Details

What is the formal charge on the sulfur atom in the resonance structure of SO2 that has one single bond and one double bond?
a) +1
b) -1
c) -2

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lewis Dot Structure: Formal Charge concept. If you need more Lewis Dot Structure: Formal Charge practice, you can also practice Lewis Dot Structure: Formal Charge practice problems.