1. Chemistry Basics Metals, Metalloids, Non-Metals

2. Grouping of Elements  As we have discussed in class, elements on the periodic table can be broken down into different groups. Some of the main groupings are: Metals Metals Non-Metals Non-Metals Metalloids Metalloids

3. Discussion - Metals  70% of the elements are metals  What are pots & pans made of?  Why?  What are wires made of?  Why?  What is most jewelry made of?  Why

4. Notes: Metals  Good conductors of heat  Good conductors of electricity  Luster – Shiny and reflective  Malleable – Can be pounded/shaped without breaking  Ductile – Drawn out into wires  Examples gold, silver

5. Discussion Non-Metals  What do we cover wires with?  Why?  What are the handles of your pots and pans covered with?  Why?  What is your clothing made of?  Why?

6. Notes: Non-Metals  Usually gases or brittle solids at room temperature  Poor conductors of heat and electricity  insulators  Only 17 non-metals  Many are elements essential for life  Examples carbon, sulfur, nitrogen

7. Discussion Metalloids  What are computer chips made of?  Why?  What material do they use in plastic surgery?  Why?

8. Notes: Metalloids  Have properties of both metals and non-metals.  Semi-Conductors - Not great conductors of heat and electricity.  They are ductile and malleable  Example: silicon

9. Draw the Table in Notebook SubstanceAppearanceConductivityMalleability Metals Luster – Shiny Good Conductors Malleable Metalloids Can be shiny or dull Semi- Conductors Malleable Non-MetalsDull Insulators, not good conductors Brittle, not malleable