Your SlideShare is downloading. ×
VSEPR Notes
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

VSEPR Notes

5,996
views

Published on

Notes about the valence shell electron pair repulsion theory, 3D molecular geometries, and hybridized orbitals.

Notes about the valence shell electron pair repulsion theory, 3D molecular geometries, and hybridized orbitals.

Published in: Technology, Business

0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
5,996
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
0
Comments
0
Likes
3
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. VSEPR
  • 2. What is “vesper”?
    • V alence S hell E lectron P air R epulsion theory
    • According to VSEPR theory, the repulsion between electron pairs causes molecular shapes to adjust so that the valence-electron pairs stay as far apart as possible.
    • Able to use Lewis Structures to predict 3D geometry of molecule
  • 3. Outline
    • Hybridization
    • 3D Geometry
      • Balloons and a Table to Fill Out
  • 4. Hybridization
    • Step 1: Draw the Lewis Structure
    • Step 2: Count the number of “things” stuck to the central atom.
    • A “thing” can be another atom.
    • A “thing” can be up to a lone-pair of electrons.
    • A “thing” can NOT be a bond.
    • Example:
    Thing 1 Thing 2 Thing 3 Thing 4
  • 5. Hybridization Continued
    • Step 3: Use flow chart to match “thing” number with hybridization.
  • 6. Hybridization -> Geometry
    • Note that the hybridization for CH 4 is sp 3
    • S = 1 thing; p 3 = 3 more things; total = 4 things
  • 7. Special Geometries
    • The chart that we filled out was for regular geometries.
    • Special geometries = lone pairs
    • Lone pairs take up more space than the standard “thing” balloon.
    • They squish atoms closer together.
    • Example on next slide.
  • 8. Special Case Example
    • H 2 O
    Thing 1 Thing 2 Thing 3 Thing 4
      • 4 things = sp 3 hybridization
      • Should look like:
      • But actually looks like:
      • Angle = < 109.5 degrees
  • 9. Base Shapes