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A versatile demonstration student set ideally suited to ordinary and advanced level courses or equivalent. A comprehensive range of organic molecules can be constructed along with inorganic molecules ranging from simple ones to complexions. Grey flexible links of two lengths are provided for single and double convalent bonds while mauve links are provided for ionic, coordinate and hydrogen bonds. Set comprises :- Balls :- Carbon (6), Oxygen (22), Nitrogen (10), Sulphur (12), Halogen (8), Metal (14), Phosphorus (7), Hydrogen (14). Links :- Medium, grey and mauve (50), Long Grey (36). Packed in a plastic box
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