Video 10: The Periodic Table and Group Properties is an introduction to the idea of periodic trends and allows students to be able to predict the chemical properties of elements in groups 1 (Alkali Metals), 2, (Alkaline-Earth Metals), 7 (The Halogens) and 8 (The Noble Gases) based on group properties and their trends. In addition, students should be able to determine the number valence electrons and charge of the ions that elements in the main groups of the periodic table will form.