Write a Lewis structure for each of the following molecules/ions. Be sure to show all non-zero formal charges. Start by counting the valence electrons.

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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**Educational Website Content:**

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## Lewis Structures for Molecules and Ions

### Instructions
**Question:**
Write a Lewis structure for each of the following molecules/ions. Be sure to show all non-zero formal charges. *Start by counting the valence electrons.*

### Molecules/Ions to Consider
1. CO₃²⁻
2. CO₂
3. NO₃⁻
4. XeF₄
5. SO₂
6. COS
7. CHF₃
8. SO₃²⁻
9. NHF₂
10. PCl₃
11. HCN
12. ClO₂⁻
13. SF₆
14. CH₄O
15. NO₂F

### Chemistry Reference Sheet

#### Periodic Table of the Elements

A periodic table is provided for reference. Below is a description offered.

1. **Periodic Table Visualization:**
   - Elements are organized in rows and columns. Each element is denoted by a box containing its:
     - Atomic number (the number of protons in the nucleus)
     - Element symbol (one or two-letter abbreviation)
     - Element name
     - Average atomic mass (weighted average mass of the atoms in a naturally occurring sample of the element)

2. **Key Points:**
   - Atomic number: Number at the top of each element's box.
   - Element symbol: The letter(s) in the middle of each box.
   - Element name: Written below the element symbol.
   - Average atomic mass: Found at the bottom of the element's box (displayed with a decimal).

**Example:**

- For Sodium (Na):
  - Atomic number: 11
  - Element symbol: Na
  - Element name: Sodium
  - Average atomic mass: 22.99

**Note:** The element Hydrogen (H) has an atomic number of 1 and an average atomic mass of 1.01, whereas Helium (He) has an atomic number of 2 and an average atomic mass of 4.00.

Understanding the periodic table is crucial for drawing correct Lewis structures, as it helps determine the number of valence electrons an element has.

---

This content aims to facilitate students' learning on how to draw Lewis structures and correctly represent molecules and ions, incorporating the periodic table as an essential tool.
Transcribed Image Text:**Educational Website Content:** --- ## Lewis Structures for Molecules and Ions ### Instructions **Question:** Write a Lewis structure for each of the following molecules/ions. Be sure to show all non-zero formal charges. *Start by counting the valence electrons.* ### Molecules/Ions to Consider 1. CO₃²⁻ 2. CO₂ 3. NO₃⁻ 4. XeF₄ 5. SO₂ 6. COS 7. CHF₃ 8. SO₃²⁻ 9. NHF₂ 10. PCl₃ 11. HCN 12. ClO₂⁻ 13. SF₆ 14. CH₄O 15. NO₂F ### Chemistry Reference Sheet #### Periodic Table of the Elements A periodic table is provided for reference. Below is a description offered. 1. **Periodic Table Visualization:** - Elements are organized in rows and columns. Each element is denoted by a box containing its: - Atomic number (the number of protons in the nucleus) - Element symbol (one or two-letter abbreviation) - Element name - Average atomic mass (weighted average mass of the atoms in a naturally occurring sample of the element) 2. **Key Points:** - Atomic number: Number at the top of each element's box. - Element symbol: The letter(s) in the middle of each box. - Element name: Written below the element symbol. - Average atomic mass: Found at the bottom of the element's box (displayed with a decimal). **Example:** - For Sodium (Na): - Atomic number: 11 - Element symbol: Na - Element name: Sodium - Average atomic mass: 22.99 **Note:** The element Hydrogen (H) has an atomic number of 1 and an average atomic mass of 1.01, whereas Helium (He) has an atomic number of 2 and an average atomic mass of 4.00. Understanding the periodic table is crucial for drawing correct Lewis structures, as it helps determine the number of valence electrons an element has. --- This content aims to facilitate students' learning on how to draw Lewis structures and correctly represent molecules and ions, incorporating the periodic table as an essential tool.
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