Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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
Transcribed Image Text:**Drawing the Lewis Structure for Xenon Tetrafluoride (XeF₄)**
Welcome to our interactive learning session on the Lewis structures of molecules! Today, we will focus on drawing the Lewis structure for xenon tetrafluoride (XeF₄).
### Step-by-Step Guide
1. **Identify the Total Number of Valence Electrons:**
- Xenon (Xe) has 8 valence electrons.
- Each fluorine (F) atom has 7 valence electrons.
- Total number of valence electrons in XeF₄:
\( 1 \, \text{Xe} \times 8 \, \text{electrons} + 4 \, \text{F} \times 7 \, \text{electrons} = 8 + 28 = 36 \, \text{electrons} \).
2. **Draw the Skeleton Structure:**
- Place the least electronegative atom (Xe) in the center.
- Attach the four fluorine atoms to the xenon atom using single bonds.
3. **Distribute the Remaining Electrons:**
- Each single bond (X-F) requires 2 electrons, thus, 4 bonds use \( 4 \times 2 = 8 \) electrons.
- Subtract the bonded electrons from the total valence electrons: \( 36 - 8 = 28 \) electrons remaining.
- Distribute these remaining 28 electrons around the fluorine atoms, ensuring each fluorine receives 8 electrons to complete its octet (bonding pair + lone pairs).
4. **Distribute Lone Pairs to Central Atom:**
- After satisfying the octets of the fluorine atoms, any remaining electrons are placed on the central xenon atom.
- Xenon can accommodate more than 8 electrons (expanded octet) because it is in Period 5 of the periodic table.
### Diagram Tools
- There is an interactive canvas on the right with tools for drawing:
- **Bond Tool (single bond):** Used to draw bonds between atoms.
- **Lone Pair Electron Tool:** Used for adding lone pairs to atoms.
- **Erase Tool:** For correcting mistakes.
- **Undo Button:** To revert the last action.
- **Help Button (? symbol):** Access help documentation.
These tools will aid in accurately representing the Lewis structure of XeF
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