Description

A drag-to-order activity with 5 sets. The child arranges atoms from SMALLEST to LARGEST radius. Set 1: Li, Na, K, Rb (Group 1 - should be Li<Na<K<Rb, smallest to largest as you go down). Set 2: Na, Mg, Al, Si, P, S, Cl (Period 3 - should be Cl<S<P<Si<Al<Mg<Na, getting smaller left to right so revers

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