A Lewis dot diagram is an easy way to represent an atom’s valence electrons using dots around the element’s symbol Lewis dot diagram Bohr Model

Steps to creating Lewis dot diagrams Determine the element’s symbol Determine the number of electrons Determine number of valence electrons Now draw your valence electrons as “DOTS” around the element’s symbol Lithium Li 3 1

Let’s practice Create Lewis Dot diagrams for each of the following elements Boron Carbon Neon Potassium Sodium Have volunteers put answers on the board

Answers only Describe the difference between a period and a group on the periodic table. +3 Describe the difference between the mass number and the atomic number of an element. +2 What property of elements was used to organize the periodic table? +1 Name three elements that have properties that are similar to oxygen. +3 Which three metals are in the third period on the periodic table?+3