Molecular model building kits are great, but sometimes they can be a bit expensive, or perhaps they do not come with enough pieces to build the molecule you'd like to construct. That is why the Paper Cut-Out Molecular Model Set was designed. In this book are 276 atom pieces that you can cut out to arrange two-dimensional models of various compounds.This book contains:105 Hydrogen atoms75 Carbon atoms30 Oxygen atoms15 Nitrogen atoms15 Metal/Metalloid atoms6 Chlorine atoms6 Sulfur atoms6 Bromine atoms6 Fluorine atoms6 Phosphorus atoms6 Iodine atoms