1. Understanding the Periodic Table
Part 2: Families

2. Review: What are the columns and rows called?

3. Columns are ‘families’ because they share properties
Hydrogen has no family!

4. Group 1: Alkali Metals
Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium
1 valence electron
Shiny, soft, silvery
Highly reactive!

7. Group 2: alkali earth metals
Beryllium, Magnesium, Calcium, Strontium, Barium, and Radon
2 valence electrons
Shiny, soft, silvery- white
Relatively reactive

10. Groups 3-12: Transition Metals
The number of valence electrons varies
Relatively low reactivity
Many compounds are magnetic

13. Inner transition metals
Lanthanides and actinides
Radioactive and release energy during decay
Lanthanides are relatively common while actinides are relatively rare

15. Groups 17: Halogens Fluorine, Chlorine, Bromine, Iodine, Astatine
7 valence electrons
Highly reactive

17. Group 18: Noble Gases Helium, Neon, Argon, Krypton, Xenon, Radon
8 valence electrons Odorless, colorless
VERY low reactivity Nonflammable

18. Periodic Table Poster Project!