When students “build” atoms by placing colored marbles representing electrons, protons, and neutrons on the 20″-square hardwood board, they learn how the different components that make up the atoms work together, as well as why different atoms possess different chemical properties. The board features pockets that represent the levels of s, p, and d orbitals for electron shells one through five. It comes with a board, bag of marbles, laminated Periodic Table listing isotopes, and instruction booklet.
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