- Students will recognize that molecules are formed out of nature's need to be neutral.
- Students will be able to understand the octet rule.
- The students will be able to identify four types of bonding.
- The students will be able to construct Lewis Dot Structures for each of the bond types.
- The students will be able to determine polarity and shape of a molecule.
Task:
The
GREEN ROOM
The preliminaries before we begin the show
| Molecular Bonding - You need some basic understanding about bonding
between atoms/compounds. Look at the links below to get the general
idea.
What is a bond? Why do elements combine? Do characteristics of the atoms change? What holds molecules together? What do you need for a bond to occur? |
|
The Octet Rule - These sites will give you the general understanding
of the octet rule.
|
|
Lewis Dot Structures - These sites will give you the rules for
drawing Lewis Dot Structures
|
The
BONDING GAME
Lets make a date MOLECULE
Visit each couple above and learn how each forms its unions
Visit Quia and take the quiz. When finished, print out the total score screen and turn it in for credit.
Once you have searched through all of the couple bios provided above fill in the attached worksheets.
Now go to LearningPoint.
Share your experiences with molecules and bonds with your classmates through the discussion forum. Post your response to:
- What is the most interesting thing that you discovered about molecular bonds?
- What information confirmed what you already knew?
- List the steps you took to determine the structural formula on the Electron Dot Diagrams worksheet.
- If you had to label the type of bonds that reflect your personal relationships, which one would it be and why?
After you have posted your response, go back, read the other responses and reply to at least two other peoples' post.
So, what makes atoms so willing to form bonds with each other? Well what it really comes down to is the idea that nature is neutral. Atoms coexist with each other in stable atmospheres. When the atom becomes electrically charged, a bond forms to create a stable and happy molecule. Depending on the electronegativity of each atom, the bond that is created can be stronger or weaker. Covalent bonds are the strongest bond and ionic are the weakest of the intramolecular bonds. In the world of intermolecular bonds, hydrogen, a type of Van der Waals forces, is the stronger than dipole interactions and London dispersion forces because the element covalently bonded to hydrogen is usually very electronegative and hydrogen is extremely attracted to its shared unpaired electrons.
Like personal relationships the strength of the bond is based on the giving, sharing, or taking that occurs between the individuals. The more sharing, the more strength.
