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THE ORGANIC CHEMISTRY MOLECULAR MODEL SET This economical model set has the same number and types of atom models as The Prentice Hall Molecular Model Set PLUS seven extra atoms: 2 sulfur, 2 phosphorus, 2 fluorine and 1 nitrogen with 4 valence electrons. The flexible links allow you to create single, double, and triple bonds. The model building instructions include pictures that show how to assemble the atom models. This set contains 125 durable plastic components that can be used to build thousands of molecules. It is the perfect size to carry in your backpack or purse. The snap-closure prevents spills and the compartments keep the atom models and bonds conveniently separated. When learning to visualize 3-D molecular structures, isomerism and nomenclature, this model set is essential. Contents – 125 pieces Color Atom Number in Set Black Carbon C 14 White Hydrogen H 28 Red Oxygen O 8 Blue Nitrogen (valence 3) Nitrogen (valence 4) N N 4 1 Green Phosphorus P 2 Yellow Sulfur S 2 Green Chlorine Cl 8 Bromine Br 2 Green Fluorine F 2 Purple Iodine I 2
Product Information
US buyers - The weight limit for USPS First Class Mail is 13 oz. If you are purchasing more than 1 model set, we will ship using USPS Priority Mail. International buyers - USPS small flat rate shipping does not have a tracking number and is NOT insured. Only 1 model set will fit in the small flat rate box. The customs number can be used to determine that the package has reached your country. You become responsible for the package once it has reached your country. We cannot guarantee shipping within your country. If you would like your package insured, please select USPS Priority Mail International. If you order more than 1 model set you must choose to ship by USPS Priority Mail International. USPS Priority Mail International does not have a tracking number but it is insured.
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Immediate payment required for this item Immediate payment of US $16.95 is required. Seller's payment instructions | ||||||