Problem: Draw the Lewis structure of the carbonate ion (CO32-) showing all possible resonance structures if there are any. Determine the formal charge of each atom.

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  • For this molecule, will appear as the central atom since it's less electronegative than O

  • Valence electron of C is 4 and O is 6 with additional 2 electrons from charge. Total valence electrons is 24. ( 4 + (6*3) + 2 = 24)

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Problem Details

Draw the Lewis structure of the carbonate ion (CO32-) showing all possible resonance structures if there are any. Determine the formal charge of each atom.

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Our tutors have indicated that to solve this problem you will need to apply the Resonance Structures concept. You can view video lessons to learn Resonance Structures. Or if you need more Resonance Structures practice, you can also practice Resonance Structures practice problems.

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