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AP Chemistry
2.6 Resonance and Formal Charge
2.5 Lewis Diagrams
IntermediateMCQConceptual15.7k
Three proposed Lewis structures for the thiocyanate ion, \(\text{SCN}^-\).
Three proposed Lewis structures for the thiocyanate ion, \(\text{SCN}^-\).
Three possible resonance structures for the thiocyanate ion, \(\text{SCN}^-\), are shown in the diagram below.

Based on formal charge principles and relative electronegativities, which of the following identifies the most stable Lewis structure for \(\text{SCN}^-\) and provides the correct justification?

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