1. Properties of Matter Macroscopic properties of matter vary greatly due to the type of bonding

2. Essential Questions Why/How do atoms combine with one another to form the vast array of chemical substances that exist? What is ionic, covalent and metallic bonding and how do the types of bonding determine properties of matter?

4. Characteristics of Ionic Compounds Ionic Compounds: are always solids at room temperature conduct electricity when dissolved in water or in the molten state have high melting and boiling points are brittle are usually white and crystalline

5. Ionic Formulas B(CN) 3 LiHCO 3

6. Ionic names Boron Cyanide Lithium Hydrogen Carbonate

8. Differing Bond types

9. Characteristics of metallic bonds Properties of Metals: Malleable ( can be hammered into a thin sheet) Ductile (can be drawn into a wire) Can conduct heat and electricity easily Shiny All these properties can be attributed to the delocalized electrons and the close stacking of atoms

10. Covalent (Molecular) Compounds Gases, liquids, or solids (made of molecules) Low melting and boiling points Poor electrical conductors in all phases Many soluble in non- polar liquids but not in water

11. Covalent Network Solids Covalent because combinations of nonmetals Interconnected very hard and brittle Insoluble Extreme melting and boiling points Diamond