With the Atomic Model Nuclei Set expansion for the Elementary Atomic Model Set, help students understand the relative positions of electrons, protons and neutrons in a multitude of atoms.
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Expanding on the Elementary Atomic Model Set, additional nuclei can be created, if desired, using this set, which includes enough spheres and pom-poms to make four nuclei. Includes the spheres and pom-poms only (metal rings and stand not included).