1. Chemical Bonding and Periodic Trends

2. Periodic Trends Assignment for weekend;
Identify the periodic trends for each of the following properties:
Atomic radius
density
Boiling/melting point
First ionization energy
Electronegativity
Be able to make comparisons!!!!!!!! By Monday!!

3. Using your notes… Larger atom: hydrogen or sodium
Larger atom: nitrogen or florine
Higher ionization energy: K or Cu
Higher ionization energy: Ca or Ba
Higher electronegativity: Be or O
Higher electronegativity: O or Se
Higher Density: Cs or Os
Higher boiling point: S or Cl
EC – highest electronegativity:, lowest ioniz. Energy

4. Using Periodic properties for bond predictions
Metal to metal:
Metal to non-metal
Non-metal to non-metal (similar)
Non-metal to non-metal (different)
Electronegativity difference
0 < covalent .5 < polar covalent < 1.6 ionic
(roughly)

5. Other Trends

6. Properties Favorite substance Favorite use
Engineering techniques/production 

7. Using Dot Diagrams to predict bonding
What is a Stable Electron Configuration?? FULLOREIGHT Using DOT diagrams to represent/predict bonding

8. Using Dot Diagrams to predict bonding
Valence Shared Electron Pair Repulsion Model
VSEPR
Used to predict Molecular Shapes and there fore properties

9. Bonding Lab Work to fill out table
Check book or internet for official names to the shapes of your compounds
Be sure you can identify the central atom, if one, of each molecule
BE SURE to clean table before you open bags!!!!!!!!!

10. Shapes Make a list of molecular shapes from Chapter 12
Sketch each shape in you notebook!!!

11. Bonding comparison TYPES: NPC PC I M Conductivity (solid and aqueous)
Melting point, boiling point
Solubility
sodium chloride, sucrose, copper sulfate, glucose, starch, iron filings, manganese IV dioxide, charcoal
Data table: substance, bond type, prediction/observation