Molecular model construction set, extension set inorganic/organic chemistry, demo, ball sizes 30/40/50 mm

Demo molecular model construction set as an extension set to the basic demo molecular model construction set (item number 39829-01). For building inorganic and organic molecule models. With large spheres of 30 (hydrogen), 40 (e.g. carbon) and 50 mm diameter (e.g. sulphur). Ideal for front-of-class teaching. For inorganic and organic molecular models Large sphere diameters Equipped with all necessary elements and connectors Optimally suited for both beginning and advanced chemistry classes in high school Supplied in a transparent plastic box, which allows for clear and convenient storage All parts are extremely stable and colored in the international standard color Diameters: for hydrogen: approx. 30 mm for carbon, oxygen, nitrogen, phosphorus, tetravalent sulphur, bromine and metal: approx. 40 mm for halogen and monovalent sulfur: approx. 50 mm Contents: 32 spheres of hydrogen (1 connecting hole) 2 spheres of carbon (2 connecting holes, 180°) 4 spheres of carbon (3, 120°) 12 spheres of carbon (4, 109°28') 10 balls of oxygen (1) 8 balls of oxygen (2, 105°) 2 spheres nitrogen (2, 105°) 4 spheres of nitrogen (3, 107°) 4 spheres of nitrogen (4, 109°28') 6 balls of sulphur (2, 105°) 4 balls of sulphur (4, 109°28') 4 spheres phosphorus (4, 109°28') 6 spheres halogen (1, 50 mm) 2 spheres halogen (1, 30 mm) 2 spheres bromine (1) 2 spheres metal (2, 180°) 2 balls metal (2, 105°) 4 balls metal (3, 107°) 4 balls metal (4, 109°28') 16 connectors, short (15 mm) 110 connectors, medium (46 mm) 24 connectors, long (70 mm)