1. Grab binders and handouts off the door
4/10 Do Now
What are ionic bonds?
Does NaF represent an ionic bond? Explain why or why not.
Use Lewis Dot Structures to represent the ionic bond that forms between Mg and O
Determine the ionic compound that will from when Ca and I are combined

2. - Transfer e- from one atom to another
Bonding Recap
IONIC BONDS
- Transfer e- from one atom to another
- Metals (cations) and nonmetals (anions)
Lewis Dot Structures
- models of an atom’s valence e-

3. I
VIII
II III IV V VI VII

4. Metals vs. Nonmetals

5. 3 Steps to Determining Compound Formulas (we’re making bonds!)
Step 1: Determine what ion will form for each element Step 2: Match your elements to make a neutral compound (positive goes first!) by crossing and dropping the charges Step 3: Simplify if possible (1’s are invisible OR find the Lowest Common Multiple) Lets do some examples…

6. Bonding Notes: Key Point #5
Covalent Bonds:
- Forms when electrons are SHARED between atoms
- Form between NONMETALS only
When finished with the practice draw the Lewis Dot Structures for these covalently bonded atoms & have them checked by Ms. Herndon:
Water (H2O): H O H
Carbon Dioxide(CO2): O C O
Carbon Tetrafluoride (CF4): carbon is in the center

7. Exit Ticket 1
Directions: You have 10 minutes to complete the Exit Ticket to the best of your ability. You MAY NOT use notes, but you may use a Periodic Table. When finished submit to the class bucket.