Elements and the Periodic Table Periodic Trends Periodic Trends are repeating patterns result from organizing elements by their increasing atomic number are linked to the way in which electrons occupy and fill energy levels across a period down a group Jigsaw Activity There are several properties of the elements in the periodic table that vary in observable patterns. In this jigsaw activity you will learn about trends in the following: ◦ ◦ ◦ ◦ Atomic Size (Radius) Ionization Energy Electron Affinity Electronegativity (p 31-34) (p 34-35) (p 35-36) (p 36-37) Jigsaw Activity In groups of 4… Each person completes summary notes and a short lesson on their section (15 min). Use the suggested questions provided by your teacher as a guideline for your lesson. Each person presents to the group Each group member takes notes, listens to other member’s presentations Each person should have complete summary notes on each section Homework • • • • Read Do p31-40 p34 #16, 17 p40 #9, 11, 13 Also – Pre-Lab questions Reminder: Flame Test Lab Write-up is due Friday (attach original prediction)