Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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**Electronic Structure and Movement**

**Drawing the Second Best Resonance Structure**

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**Illustration Description:**

Two resonance structures of a molecule are displayed side by side with a double-headed arrow between them, indicating resonance. The molecule consists of a chain with the following elements and bonds:

- A nitrogen atom (N) with a positive charge, bonded to three hydrogen atoms (H).
- A carbon atom (C) double-bonded to an H and a nitrogen atom.
- Another carbon atom single-bonded to the first carbon atom and two hydrogen atoms.
- An oxygen atom (O) bonded to the first carbon atom, with three lone pairs of electrons and a single bond to a hydrogen atom.

**Instructions:**

Below the diagram, it reads: "Shown below is the major resonance structure for a molecule. Draw the second best resonance structure of the molecule. Include all non-zero formal charges."

The current resonance structure is shown on the left, and a box on the right prompts the user to draw the second best resonance structure. Several editing tools are visible, including tools to draw bonds, change charges, and add lone pairs of electrons. 

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**Educational Context:**

In this exercise, students are tasked with drawing the alternative resonance structure of a given molecule while considering the formal charges and electron movement. This enhances understanding of molecular stability and electron delocalization.
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Transcribed Image Text:**Electronic Structure and Movement** **Drawing the Second Best Resonance Structure** --- **Illustration Description:** Two resonance structures of a molecule are displayed side by side with a double-headed arrow between them, indicating resonance. The molecule consists of a chain with the following elements and bonds: - A nitrogen atom (N) with a positive charge, bonded to three hydrogen atoms (H). - A carbon atom (C) double-bonded to an H and a nitrogen atom. - Another carbon atom single-bonded to the first carbon atom and two hydrogen atoms. - An oxygen atom (O) bonded to the first carbon atom, with three lone pairs of electrons and a single bond to a hydrogen atom. **Instructions:** Below the diagram, it reads: "Shown below is the major resonance structure for a molecule. Draw the second best resonance structure of the molecule. Include all non-zero formal charges." The current resonance structure is shown on the left, and a box on the right prompts the user to draw the second best resonance structure. Several editing tools are visible, including tools to draw bonds, change charges, and add lone pairs of electrons. --- **Educational Context:** In this exercise, students are tasked with drawing the alternative resonance structure of a given molecule while considering the formal charges and electron movement. This enhances understanding of molecular stability and electron delocalization.
Expert Solution
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Resonance structure :- The one structure of molecule in which the π-electrons and lone pair of electrons delocalise to form another possibile structure of that molecule is known as resonance structure.

In resonance structure all atoms position are localised only π-electrons and loan pair of electrons delocalise.

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