Molecular Models Purple Polystyrene Tetrahedral Phosphorus Atom Center, 2" Diameter (Pack of 6)

Package of six individual tetrahedral Phosphorus atom centers to further personalize your molecular model set or kit. Atom center is a 2-inch diameter durable high-density polystyrene ball with uniquely designed bond receptors. The receptor of the 19 series allow rotation at the bond atom interface while forming a stable cohesive attachment in your chemical structure. Atom centers are finished in durable enamels for years of brilliant demonstration of the respective element.