Kit de modèle moléculaire de taille géante, kit de base

Non disponible en dehors du Royaume-Uni et de l'Irlande

General description

Large, lightweight molecular models for classroom demonstration of organic and inorganic structures. For building models to scale of 20 cm/Å and 8 cm/Å. Bond lengths range from 5.5 to 27 cm. Atomic centers are 5 cm in diameter, finished in standard atom colors, and have a reinforced vinyl receptor at each bond position for insertion of connecting rods (bonds). All model kits include storage box and instructions. Additional atoms and bonds are available separately.