AP Chemistry
2.6 Resonance and Formal Charge
A student draws a Lewis structure for the carbonate ion, \(\text{CO}_3^{2-}\), showing one carbon-oxygen double bond and two carbon-oxygen single bonds. Experimental measurements show that all three carbon-oxygen bond lengths in \(\text{CO}_3^{2-}\) are identical (\(128\text{ pm}\)). Which of the following statements correctly identifies the bond order and justifies the equal bond lengths in \(\text{CO}_3^{2-}\)?
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