1. We will learn about VSEPR.
I will sign up for Google Classroom and complete a review.
Success Criteria
Know how to use chart and Lewis dot structure to determine molecular shape
Know how to tell when a bond is ionic and when it is covalent.

2. For those of you new to my class:
Please bring a composition notebook next time so we can get your notebook set up. This will count as a quiz grade each nine weeks.
Chemistry information on the left-hand board is in red. I put upcoming information that you need at the bottom of that board.
I return your work to you in the file folders for your class. Please check your folder to see what has been returned to you.
You can throw away any work from last semester that is in your folder.

3. If you don’t have your notebook today
If you don’t have your notebook today , just use a sheet of paper to take your notes. Most of what we are doing today is on the computer.
Please remember to bring your notebook next class.

4. Google Classroom
We are going to try out google classroom for this nine weeks. You can complete many of your assignments online using your phone or home computer or you can complete them on paper. Both options are available for many of the assignments. Some assignments will be only on paper. Any assignment that you complete on paper is going to show up on google classroom as not turned in, but I will be able to enter a grade for it in Focus.
Go to classroom.google.com
On the homepage, click Add.
In the box enter this code: cjrw9a (for 1A), e01rju (for 2A), b9xyhe (for 4A)
Click join.

5. Do the review activity and assignment.
You will have 20 minutes to complete the review activity and assignment. I will go around the classroom and help those who need my help.
If you complete the assignment before time is up, please complete the survey at
Go to andhttp://klru.pbslearningmedia.org/resource/lsps07.sci.phys.matter.covalentbond/covalent-bonding/ .
Complete the tutorial at each of the websites listed above.
Then go to the google form linked here and enter your answers.
You may use your notes.

6. Complete the survey and then shut down and turn in your laptop.
Complete the survey at this link:
After you have completed the survey, please shut down your laptop and put it back on the cart in the appropriately numbered slot and plug it in.
Get your notebook if you don’t already have it. We will be taking notes.
You will have 10 minutes to complete the survey.

7. 4-1-1 We are going to watch a short video to introduce VSEPR.
Just watch. No notes.
After the video is over, spend one minute writing down in your notebook on a left- hand page what you thought was important or was new to you.
Then spend one minute sharing with your table partners.
I will be calling on you afterwards to share with the class.

8. Stop the video at 3 minutes.

9. 4-1-1
Spend one minute writing down on a left-hand page what you thought was important or was new to you. NO TALKING!
Spend one minute sharing with your table partners.
I thought (my partner thought) _________ was important because ____________.
I learned (my partner learned) ______________________________ .
I will be calling on you. Be prepared to share with the class.

10. New section in notes
Title your new section - VSEPR

11. VSEPR VSEPR - Valence Shell Electron Pair Repulsion
Compounds are arranged so that their electrons are as far away from each other as possible.
Remember that like charges repel and opposite charges attract.

12. # Atoms attached to central atom
Glue or tape this table onto the next right-hand page of your notebook and fill it in.
Molecular geometry
# Atoms attached to central atom
# Lone Pairs
Example
Linear
Bent
Trigonal Planar
Tetrahedral
Trigonal Pyramidal
CO2 or HCN

14. Weird exception to the rules you’ve learned
This isn’t the only exception. This is just an example.
Be is a metal and F is a nonmetal, so they should bond ionically. However, they actually form a covalent bond and follow the duet rule rather than the octet rule.

15. # Atoms attached to central atom
Molecular geometry
# Atoms attached to central atom
# Lone Pairs
Example
Linear
Bent
Trigonal Planar
Tetrahedral
Trigonal Pyramidal
CO2 or HCN
SnCl2
H2O

17. # Atoms attached to central atom
Molecular geometry
# Atoms attached to central atom
# Lone Pairs
Example
Linear
Bent 2 1
SnCl2
H2O
Trigonal Planar
Tetrahedral
Trigonal Pyramidal
CO2 or HCN
H2CO or CO32-

19. # Atoms attached to central atom
Molecular geometry
# Atoms attached to central atom
# Lone Pairs
Example
Linear 2
CO2 or HCN
Bent 1
SnCl2
H2O
Trigonal Planar 3
H2CO or CO32-
Tetrahedral 4
CH4
Trigonal Pyramidal

21. # Atoms attached to central atom
Molecular geometry
# Atoms attached to central atom
# Lone Pairs
Example
Linear 2
CO2 or HCN
Bent 1
SnCl2
H2O
Trigonal Planar 3
H2CO or CO32-
Tetrahedral 4
CH4
Trigonal Pyramidal
NH3

22. You can ignore the “electron pair geometry” picture
You can ignore the “electron pair geometry” picture. We only cover molecular geometry in on-level chemistry.

23. To Predict Shape of Compound
Draw Lewis Structure
Look at electron pairs and arrange accordingly
Use your table to determine the shape.
CH4
Do this on the page where you started your VSEPR notes.

24. Draw the lewis dot structure and then predict the shape.
Work with your table partner. Do this in your notebook.
CO2
ClO3-
SF2
PCl3

25. Have a nice day!
We will continue with VSEPR next class through a lab activity and you will also have an assignment to complete. The lab and assignment will be on paper, but there will be others that have an online option.