Teacher Resources for Instructional Planning


Grade 8, Science Std 3.3: Identify the number of valence electrons an element has, (groups 1, 2, and 13 – 18 and periods 1, 2, & 3 only), using the periodic table. • Describing how elements in a group share properties because their atoms have the same number of valence electrons.

Lesson Plans: Reading The Periodic Table Categorize a group of shells (or other objects - rocks, nails, shoes, etc.) and unknown elements using different characteristics. Read and interpret the Periodic Table. Why Are Electrons Important? The student will be able to write the electron configuration of any element, given the atomic number. Given the location of an element on the periodic table, the student will be able to give the highest energy level the valence electrons are on, and how many valence electrons it has. Confirming and Visualizing Lewis Dot Structures With this activity, students can calculate and visualize the atomic and molecular structures of bonds. The Numbers Game Find the atomic number, mass number, proton number, neutron number. and electron number.

Resources: Great Periodic Table Resource Web elements--great tool! Chemical Bonding Good explanations and examples of chemical bonding Chem4kids Great tutorials and activities Chemistry Experiments Lots of demos, experiments, and labs
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