This resource is a great way to review or assess students' knowledge of how to use the periodic table to determine the number of valence electrons an element has. It also reviews how to read chemical formulas to determine the number of atoms in a substance. In Texas, this resource is aligned to 8.5C and 8.5D . With grid response practice as well as fill-in-the-blanks, it is a great way to get ready for STAAR. Key/suggested use for activity is shown in preview.