This is a select group of element cards designed to minimize extra information while focusing on families or periods, allowing teachers to illustrate key concepts as they sequentially build the table. Can be used to illustrate the 10 major concepts that form the cornerstone of atomic theory. The 40 card set includes elements 1-20 plus: hydride (H-), additional cards (4 hydrogen, 3 oxygen, 2 chlorine, 1 fluorine, 2 sodium and 2 potassium). 5¾"x 4¼" (.78mm thick). For magnetic surfaces. Grades 7 +.
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