1. Periodic Table of Elements (Organization)

2. Types of Elements
Metals
Non-Metals
Metalloids

3. Alkali Metals: Group 1
These metals are so reactive that they are never found as uncombined elements in nature.

4. Alkaline Earth Metals: Group 2
Alkaline Earth Metals are not as reactive as the metals in Group 1, but they are more reactive than most metals.

5. Transition Metals: Groups 3 -12

6. Metals in Mixed Groups

7. Lanthanides: First row of elements placed below the main part of the periodic table.

8. Actinides: The elements below the lanthanides

9. Non-Metals: PHYSICAL PROPERTIES CHEMICAL PROPERTIES
Poor conductors of electricity and heat
Reactive with other elements
10 out of the 16 nonmetals are gases at room temperature
Dull
Not shiny
Brittle (not malleable or ductile)

10. Carbon Family: Group 14
Only Carbon, in the Carbon Family, is a nonmetal.

11. Nitrogen Family: Group 15
Nitrogen Family contains two nonmetals: Nitrogen and Phosphorus

12. Oxygen Family: Group 16
The Oxygen Family contains three nonmetals: Oxygen, Sulfur, and Selenium.

13. Halogen Family: Group 17 Halogen = salt forming
All but Astatine are nonmetals

14. Noble Gases: Group 18

15. Hydrogen: the simplest and smallest atom in the Periodic Table of Elements
Because the chemical properties of Hydrogen differ very much from those of the other elements, it really cannot be grouped into a family.

16. Metalloids
METALLOIDS HAVE SOME CHARACTERISTICS OF BOTH METALS AND NONMETALS
SOLIDS ARE ROOM TEMPERATURE
BRITTLE
HARD
SOMEWHAT REACTIVE