VSEPR Theory (Molecular Shapes) chart detailing electron and molecular geometries, bond angles, and examples.
Table showing VSEPR theory for molecular shapes, including electron geometry, molecular geometry, bond angles, and examples for various molecular formulas.
PNG
300×231
8.6 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #349549
⭐
Show Answer Key & Explanations
Step-by-step solution for: Worksheet 13 - Molecular Shapes The shapes of molecules can be
▼
Show Answer Key & Explanations
Step-by-step solution for: Worksheet 13 - Molecular Shapes The shapes of molecules can be
Actually, you did not upload an image — your message says “I uploaded an image with a task,” but no image is attached or visible in this chat interface.
Since I cannot see the image you mentioned, I can’t solve the specific problem shown in it. However, based on your text:
> “VSEPR Theory (Molecular Shapes)”
and the table you partially described (with columns like Total Electron Pairs, Bonding Pairs, Lone Pairs, Molecular Shape, Geometry, Hybridization, Bond Angles), I can help you understand how to solve VSEPR problems in general, and even fill out a typical VSEPR chart if you tell me which molecules you’re working with.
---
VSEPR = Valence Shell Electron Pair Repulsion
It predicts the 3D geometry of molecules based on the idea that electron pairs (bonding and lone) around a central atom repel each other and arrange themselves as far apart as possible.
---
| Formula | Total e⁻ Pairs | Bonding Pairs | Lone Pairs | Electron Geometry | Molecular Shape | Hybridization | Bond Angle |
|---------|----------------|---------------|----------|-------------------|------------------|---------------|------------|
| AX₂ | 2 | 2 | 0 | Linear | Linear | sp | 180° |
| AX₃ | 3 | 3 | 0 | Trigonal Planar | Trigonal Planar | sp² | 120° |
| AX₂E | 3 | 2 | 1 | Trigonal Planar | Bent | sp² | <120° |
| AX₄ | 4 | 4 | 0 | Tetrahedral | Tetrahedral | sp³ | 109.5° |
| AX₃E | 4 | 3 | 1 | Tetrahedral | Trigonal Pyramidal | sp³ | ~107° |
| AX₂E₂ | 4 | 2 | 2 | Tetrahedral | Bent | sp³ | ~104.5° |
| AX₅ | 5 | 5 | 0 | Trigonal Bipyramidal | Trigonal Bipyramidal | sp³d | 90°, 120° |
| AX₄E | 5 | 4 | 1 | Trigonal Bipyramidal | See-Saw | sp³d | <90°, <120°|
| AX₃E₂ | 5 | 3 | 2 | Trigonal Bipyramidal | T-Shaped | sp³d | ~90° |
| AX₂E₃ | 5 | 2 | 3 | Trigonal Bipyramidal | Linear | sp³d | 180° |
| AX₆ | 6 | 6 | 0 | Octahedral | Octahedral | sp³d² | 90° |
| AX₅E | 6 | 5 | 1 | Octahedral | Square Pyramidal | sp³d² | <90° |
| AX₄E₂ | 6 | 4 | 2 | Octahedral | Square Planar | sp³d² | 90° |
*(Note: A = central atom, X = bonded atom, E = lone pair)*
---
1. Draw the Lewis structure of the molecule.
2. Count total electron domains (bonding + lone pairs) around the central atom.
3. Determine electron geometry based on total domains.
4. Determine molecular shape by ignoring lone pairs (but they affect bond angles).
5. Identify hybridization:
- 2 domains → sp
- 3 domains → sp²
- 4 domains → sp³
- 5 domains → sp³d
- 6 domains → sp³d²
6. Estimate bond angles — lone pairs compress bond angles.
---
- Central atom: O
- Lewis structure: O has 2 bonds + 2 lone pairs → total 4 electron domains
- Electron geometry: Tetrahedral
- Molecular shape: Bent
- Hybridization: sp³
- Bond angle: ~104.5° (less than 109.5° due to lone pair repulsion)
---
To give you the exact solution for your image’s task, please:
✔ Type the molecule formulas listed in your table (e.g., CH₄, NH₃, H₂O, etc.)
OR
✔ Describe what’s in the image (e.g., “Row 3 shows AX₃E with trigonal planar geometry”)
OR
✔ Upload the image again (if platform allows)
---
Once you provide more details, I’ll solve your specific problem step by step! 🧪📐
Let me know how you’d like to proceed.
Since I cannot see the image you mentioned, I can’t solve the specific problem shown in it. However, based on your text:
> “VSEPR Theory (Molecular Shapes)”
and the table you partially described (with columns like Total Electron Pairs, Bonding Pairs, Lone Pairs, Molecular Shape, Geometry, Hybridization, Bond Angles), I can help you understand how to solve VSEPR problems in general, and even fill out a typical VSEPR chart if you tell me which molecules you’re working with.
---
🔍 What is VSEPR Theory?
VSEPR = Valence Shell Electron Pair Repulsion
It predicts the 3D geometry of molecules based on the idea that electron pairs (bonding and lone) around a central atom repel each other and arrange themselves as far apart as possible.
---
📊 Typical VSEPR Table Structure
| Formula | Total e⁻ Pairs | Bonding Pairs | Lone Pairs | Electron Geometry | Molecular Shape | Hybridization | Bond Angle |
|---------|----------------|---------------|----------|-------------------|------------------|---------------|------------|
| AX₂ | 2 | 2 | 0 | Linear | Linear | sp | 180° |
| AX₃ | 3 | 3 | 0 | Trigonal Planar | Trigonal Planar | sp² | 120° |
| AX₂E | 3 | 2 | 1 | Trigonal Planar | Bent | sp² | <120° |
| AX₄ | 4 | 4 | 0 | Tetrahedral | Tetrahedral | sp³ | 109.5° |
| AX₃E | 4 | 3 | 1 | Tetrahedral | Trigonal Pyramidal | sp³ | ~107° |
| AX₂E₂ | 4 | 2 | 2 | Tetrahedral | Bent | sp³ | ~104.5° |
| AX₅ | 5 | 5 | 0 | Trigonal Bipyramidal | Trigonal Bipyramidal | sp³d | 90°, 120° |
| AX₄E | 5 | 4 | 1 | Trigonal Bipyramidal | See-Saw | sp³d | <90°, <120°|
| AX₃E₂ | 5 | 3 | 2 | Trigonal Bipyramidal | T-Shaped | sp³d | ~90° |
| AX₂E₃ | 5 | 2 | 3 | Trigonal Bipyramidal | Linear | sp³d | 180° |
| AX₆ | 6 | 6 | 0 | Octahedral | Octahedral | sp³d² | 90° |
| AX₅E | 6 | 5 | 1 | Octahedral | Square Pyramidal | sp³d² | <90° |
| AX₄E₂ | 6 | 4 | 2 | Octahedral | Square Planar | sp³d² | 90° |
*(Note: A = central atom, X = bonded atom, E = lone pair)*
---
✔ How to Solve a VSEPR Problem (Step-by-Step)
1. Draw the Lewis structure of the molecule.
2. Count total electron domains (bonding + lone pairs) around the central atom.
3. Determine electron geometry based on total domains.
4. Determine molecular shape by ignoring lone pairs (but they affect bond angles).
5. Identify hybridization:
- 2 domains → sp
- 3 domains → sp²
- 4 domains → sp³
- 5 domains → sp³d
- 6 domains → sp³d²
6. Estimate bond angles — lone pairs compress bond angles.
---
💡 Example: Water (H₂O)
- Central atom: O
- Lewis structure: O has 2 bonds + 2 lone pairs → total 4 electron domains
- Electron geometry: Tetrahedral
- Molecular shape: Bent
- Hybridization: sp³
- Bond angle: ~104.5° (less than 109.5° due to lone pair repulsion)
---
📥 Please Provide:
To give you the exact solution for your image’s task, please:
✔ Type the molecule formulas listed in your table (e.g., CH₄, NH₃, H₂O, etc.)
OR
✔ Describe what’s in the image (e.g., “Row 3 shows AX₃E with trigonal planar geometry”)
OR
✔ Upload the image again (if platform allows)
---
Once you provide more details, I’ll solve your specific problem step by step! 🧪📐
Let me know how you’d like to proceed.
Parent Tip: Review the logic above to help your child master the concept of worksheet 15 molecular shapes.