< OFeedback Draw the Lewis structures for three resonance forms of the nitrate ion, NO,. Include electron lone pairs, and any formal charges. Recall that resonance structures ar multiple Lewis structures that collectively represent the structure molecule. Resonance structures mu have the same molecular formulas- same atom connectivities, the same overall charges, and the same num :0 : of electrons. Nitrogen has 5 valence electrons am oxygen has 6 valence electrons. Th the nitrate ion has a total of 5 + 3 (6) + 1 = 24 valence electr The most electropositive atom is p in the middle of the Lewis structur Recall that both nitrogen and oxyg- obey the octet rule. The structure t shows 24 valence electrons and ob the octet rule will have one N=O double bond

Chemistry
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Chapter1: Chemical Foundations
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**Task: Drawing Lewis Structures for Nitrate Ion**

**Objective:** Draw the Lewis structures for three resonance forms of the nitrate ion (NO₃⁻). Include electron lone pairs and any formal charges.

**Diagram Explanation:**

The diagram shows three resonance forms of the nitrate ion, each with a different arrangement of double bonds.

1. **First Structure:** 
   - Central nitrogen atom forms one double bond with an oxygen atom and two single bonds with the other oxygen atoms.
   - The oxygen with the double bond has two lone pairs, while the others have three lone pairs. 
   - The single-bonded oxygen atoms have a negative formal charge.

2. **Second Structure:** 
   - Similar to the first, but the double bond is between nitrogen and a different oxygen atom.
   - Lone pairs and charge distribution mirror those in the first structure, reflecting resonance. 

3. **Third Structure:**
   - Double bond is again shifted to the third oxygen atom, with analogous lone pair and charge distribution.

**Feedback Explanation:**

- **Resonance Structures Overview:** Resonance structures are multiple Lewis structures that collectively represent the structure of a molecule. They have the same molecular formula, atom connectivity, charges, and number of electrons.

- **Valence Electrons Calculation:** 
   - Nitrogen has 5 valence electrons.
   - Oxygen has 6 valence electrons.
   - For NO₃⁻: Total = 5 + 3(6) + 1 = 24 valence electrons.

- **Structure Notes:** 
   - Nitrogen, the most electronegative, is central.
   - Both nitrogen and oxygen must obey the octet rule.
   - Correct structures have 24 valence electrons, with one N=O double bond.
Transcribed Image Text:**Task: Drawing Lewis Structures for Nitrate Ion** **Objective:** Draw the Lewis structures for three resonance forms of the nitrate ion (NO₃⁻). Include electron lone pairs and any formal charges. **Diagram Explanation:** The diagram shows three resonance forms of the nitrate ion, each with a different arrangement of double bonds. 1. **First Structure:** - Central nitrogen atom forms one double bond with an oxygen atom and two single bonds with the other oxygen atoms. - The oxygen with the double bond has two lone pairs, while the others have three lone pairs. - The single-bonded oxygen atoms have a negative formal charge. 2. **Second Structure:** - Similar to the first, but the double bond is between nitrogen and a different oxygen atom. - Lone pairs and charge distribution mirror those in the first structure, reflecting resonance. 3. **Third Structure:** - Double bond is again shifted to the third oxygen atom, with analogous lone pair and charge distribution. **Feedback Explanation:** - **Resonance Structures Overview:** Resonance structures are multiple Lewis structures that collectively represent the structure of a molecule. They have the same molecular formula, atom connectivity, charges, and number of electrons. - **Valence Electrons Calculation:** - Nitrogen has 5 valence electrons. - Oxygen has 6 valence electrons. - For NO₃⁻: Total = 5 + 3(6) + 1 = 24 valence electrons. - **Structure Notes:** - Nitrogen, the most electronegative, is central. - Both nitrogen and oxygen must obey the octet rule. - Correct structures have 24 valence electrons, with one N=O double bond.
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