OBJECTIVES Understand How the Periodic Table is Organized Learn the 7 Basic Families on the Periodic table
What are Main-Group elements? Elements in group 1, 2, and 13-18. The electron configurations of the elements in each main group are regular and consistent. Four groups within the main-group elements have special names (Alkali Metals, Alkali- Earth Metals, Halogens, Noble Gases).
What are Alkali Metals? Elements in Group 1Group 1 React with water to make alkaline solutions The Alkali metals have one valence electron Very reactive
What are Alkaline Earth Metals? Elements in Group 2Group 2 Slightly less reactive than Alkali metals Have two valence electrons
What are Halogens? Elements is Group 17Group 17 Most reactive group of Non-metals Have 7 valence electrons React with most metals to produce salts. Example: NaCl Sodium(Metal) + Chlorine(Halogen)
What are Noble Gases? Elements in Group 18 Most Stable Group Low chemical reactivity Full set of valence electrons(8 electrons) Example: Neon 1s 2 2s 2 2p 6 - 8 valence electrons
What are Transition Metals? elements in groups 3 – 12. Do not have identical outer electron configurations. Less reactive than Alkali or Alkaline Earth Metals
What group is Hydrogen in? In a Group by itself Most common element Can react with many other elements Component of the organic molecules found in all living things.
What are Actinides and Lanthanides? Part of the Transition Metals Elements 58-71/lanthanide Elements 90-103/Actinides(radioactive)
Group Activity Periodic Table Game Follow the Directions on the Whiteboard
Statement I (true or false) Correct Explanation Statement II (true or false) # 16 #17 # 18 #19