Understanding the Periodic Table Part 2: Families

Review: What are the columns and rows called?

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

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

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

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

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

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

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

Periodic Table Poster Project!