Molecular Expansion Set - Carbon, Nitrogen & Oxygen Atoms For Chemistry Model Building

About This Product

Science teachers and students, this expansion set is exactly what you need to build more complex molecules for chemistry classes! The kit includes 22 high-quality plastic atoms - 10 carbon atoms (tetrahedral with 4 bonds), 6 nitrogen atoms (trigonal pyramidal with 3 bonds), and 6 oxygen atoms (bent with 2 bonds). These are designed to work with any Duluth Labs molecular set, allowing you to create larger and more detailed structures for general chemistry, organic chemistry, inorganic chemistry, and even biochemistry. The atoms are durable enough for classroom use but precise enough for accurate molecular representations. I've used these to demonstrate everything from simple water molecules to complex organic compounds, and having the right atom types makes such a difference in teaching molecular geometry and bonding. The pieces snap together securely but come apart easily when you need to rebuild. They come in a resealable bag for storage, which keeps everything organized between uses. Whether you're a teacher building demonstration models, a student studying for exams, or a homeschool parent making science hands-on, these expansion atoms let you create accurate 3D models that really help visualize chemical structures. Much better than trying to imagine these complex shapes from 2D textbook diagrams! The quality is professional grade, and having dedicated carbon, nitrogen, and oxygen atoms means you can properly represent the most common elements in organic molecules.