1. Chapter 5 Focus on slides 31 to end.
Be sure you understand the information and are able to complete the activities on slides 35, 43, 44, 46, 53, 57, 62, 63, 64
You will be asked to draw out orbital diagrams and electron configurations.
You must understand the concept of valance electrons.

3. Learning Check Write the orbital diagrams for 1. Nitrogen
1s s p s p
2. Oxygen
3. Magnesium

4. Chapter 6 Rule of 8, the octet
Using arrows show the exchange or sharing of electrons to form compounds. see the following slides
Study the naming of ionic and covalent compounds from the formulas and writing formulas from compound names
Memorize the names and formulas for the polyatomic ions and how to use them to write formulas and compound names

5. Charge Balance in NaF
The formulas of ionic compounds are determined from the charges on the ions.
atoms ions
    –
Na   F :  Na+ : F :  NaF
   
sodium fluorine sodium fluoride
The overall charge of NaF is zero (0).
Na F- = NaF
(1+ ) + (1-) = 0

6. Using Lewis Electron Dot SymbolsBr
Ca →

7. Using Lewis Electron Dot Symbols
Al N →

8. Writing Ionic Formulas from Charges
Charge balance is used to write the formula for
sodium nitride, a compound containing Na+ and
N3−.
Na+
3 Na N3− = Na3N
3(+1) (3-) =
Note: the subscript 3 for three sodium ions.

9. Charges of Representative Elements
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Publishing as Benjamin Cummings

10. Some Ionic Compounds with Two Elements
Formula Ions Name
NaCl Na+ Cl- sodium chloride
K2S K+ S2- potassium sulfide
MgO Mg2+ O2- magnesium oxide
CaI2 Ca2+ I- calcium iodide
Al2O3 Al O2- aluminum oxide

11. More Ionic Compounds
Copyright © by Pearson Education, Inc. Publishing as Benjamin Cummings

12. Nick the Camel Craved and ate a Clam Supper in Phoenix.

13. Molecular Geometries or Shapes

14. Be able to draw out electron dot foumulas for simple covalent compounds like those in your lecture notes.
Know how to use the table of electronegativities.
Be able to distinguish between ionic bonding, covalent bonding, hydrogen bonding, dipole dipole or polar bonding, and non polar dispersion forces of attraction.
Be able to use arrows to describe the dipole in a polar molecule.

15. For Chapter 8 see the items listed on the study guide.