Electron Geometry
Presentation
•
Science
•
9th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
3 Slides • 3 Questions
1
Valence Shell Electron Pair Repulsion Theory
Level 3 / Area 2 / Section 5 / VSEPR Theory
2
Common VSEPR Geometry
Bond Geometry is based on electron domains
To determine a compound's geometry, we must look at three things:
- The number of electron domains (how many electron pair sites around the central atom; either 2, 3, or 4)
- The number of bonding groups (how many bonded atoms around the central atom)
- The number of lone pair electrons (un-bonded electron pairs around the central atom)
3
VSEPR Chart - Use the cart to help answer the following questions
4
Labelling
Using a 3D model helps visualize the molecular geometry of a compound.
In the image, label the lone pair, the double bond, the single bond, and the central atom.
Lone Pair
Central Atom
Single Bond
Double Bond
5
Multiple Select
Parent geometries are determined by the electron domains around the central atom; either 2, 3, or 4 domains. Which of the following are considered the three parent (or electron) geometries?
Linear
Trigonal Planar
Tetrahedral
Octahedral
6
Match
The molecular geometry of a compound is determined by both the bonding domains and number of lone pair. Match the description below to the molecular geometry of the compound.
- 2 electron domains
- 2 bonding groups
- 0 lone pair
-3 electron domains
- 3 bonding groups
- 0 lone pair
-3 electron domains
- 2 bonding groups
- 1 lone pair
-4 electron domains
- 4 bonding groups
- 0 lone pair
- 4 electron domains
- 3 bonding groups
- 1 lone pair
Linear geometry
Trigonal Planar Geometry
Bent Geometry
Tetrahedral Geometry
Trigonal Pyramidal Geometry
Linear geometry
Trigonal Planar Geometry
Bent Geometry
Tetrahedral Geometry
Trigonal Pyramidal Geometry
Valence Shell Electron Pair Repulsion Theory
Level 3 / Area 2 / Section 5 / VSEPR Theory
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