Patterns of the Periodic Table: Finding Shells and Valence Electrons


  • Google Slides – students will learn how to find the number of energy levels (shells) for elements in periods 1 – 8 and the number of valence electrons in their outer shells using the periodic table. Updated (Public link)
  • Handout – updated Shells & Valence Electrons
    • Older version: How to determine the number of valence electrons and shells using the element’s group number and period – Notes (pdf) and Slides (ppt)
  • Find that Element!” Worksheet (pdf)- Practice finding the period & group for each element



How to draw Lewis Structures – a step by step tutorial


  • Updated Google Slides (Public Link) with step-by-step instructions on how to draw Lewis Structures
  • Lewis Diagrams worksheets