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ChemistryGeneral Chemistry

Resonance Forms of the Nitrite Ion: Bonds, Lone Pairs, and Charges

Construct both nitrite resonance forms with complete lone-pair, formal-charge, and valence-electron checks.

Question

Sodium nitrite is an ionic substance used in meat preservation. Represent the nitrite ion, NO2−\mathrm{NO_2^-}, with its resonance forms.

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Evidence boundary

This answer addresses the nitrite-ion task in OpenStax Chemistry 2e Exercise 7.47. It supplies both equivalent octet-satisfying contributors, all lone pairs and formal charges. The diagrams encode bonds and charge, not molecular geometry. Resonance contributors are bookkeeping drawings, not separately observable ions or an equilibrium mixture.