1. Chemical Families

2. Alkali Metals Elements in this family: Location: Group 1A (Column 1)
Physical Properties: Soft enough to be cut with a knife, Low melting point

3. Alkali Metals Valence Electrons: 1 Charge Formed: +1
Reactivity: Highly reactive especially with water

4. Alkaline Earth Metals Elements in this family:
Location: Group 2A (Column 2)
Physical Properties: Harder than alkali metals, Good conductors

5. Alkaline Earth Metals Valence Electrons: 2 Charge Formed: +2
Reactivity: Somewhat reactive

6. Transition Metals Elements in this family:
Location: D sublevel (Column 3-12)
Physical Properties: High Melting/Boiling points, Dense, Shiny, Lustrous

7. Transition Metals Valence Electrons: “Multivalent”
Charge Formed: Various Positive
Reactivity: Relatively unreactive

8. Halogens Elements in this family: Location: Group 7A (Column 17)
Physical Properties: Contains elements in all different states of matter

9. Halogens Valence Electrons: 7 Charge Formed: -1
Reactivity: Highly reactive
Why are the halogens so reactive?

10. Noble Gases Elements in this family: Location: Group 8A (Column 18)
Physical Properties: Odorless, colorless gases at room temperature

11. Noble Gases Valence Electrons: 8 Charge Formed: 0
Reactivity: Unreactive