Molecular Models Purple Polystyrene Tetrahedral Phosphorus Atom Center 2" Diameter

Individual tetrahedral Phosphorus atom center 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.