Answer
Representative elements are those that are in groups 1A through 7A. Na is a representative element because it is in gorup 1A, and so is Mg (group 2A). Cl is also a representative element, because it is in group 7A. Fe and Ni are NOT representative elements, they are transition metals.
Work Step by Step
Representative elements are those that are in groups 1A through 7A. Na is a representative element because it is in gorup 1A, and so is Mg (group 2A). Cl is also a representative element, because it is in group 7A. Fe and Ni are NOT representative elements, they are transition metals.