Draw resonance structures for the nitric acid molecule. |...

Name: Problem 53, Chapter 7: Chemistry
Uploaded: 2021-09-12T19:13:50-08:00
Duration: 49 s
Channel: Nicole Smina
Description: Draw resonance structures for the nitric acid molecule.

Key Concepts

Resonance Structures

Resonance structures are different Lewis representations of a molecule that depict the possible distributions of electrons, particularly ? electrons and lone pairs, while keeping the positions of atoms unchanged. They help in understanding how the delocalization of electrons contributes to the overall stability of the chemical species.

Lewis Structures

Lewis structures are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist. They serve as the foundation for drawing resonance structures as they outline the connectivity and potential positions for electron delocalization.

Formal Charge

Formal charge is a bookkeeping tool used to estimate the charge distribution within a molecule. In resonance structures, examining formal charges on different atoms helps identify the most stable forms and rationalize electron movement across the molecule.

Electron Delocalization

Electron delocalization refers to the spreading of electrons over several adjacent atoms, rather than being confined between two atoms. This concept is central to resonance as it provides the basis for why multiple resonance structures can be drawn, reflecting a more accurate depiction of the molecule's electron distribution.

Resonance Hybrid

The resonance hybrid is an advanced concept that represents the actual electron distribution in a molecule as a weighted average of its resonance structures. It acknowledges that none of the individual resonance structures fully describes the molecule, but together they offer a more complete understanding of its electronic nature.

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