RELIANCER Molecular Model Kit - 419PCS Organic Chemistry Set with Atoms & Bonds | STEM Learning

Hands-on chemistry comes to life with the RELIANCER Molecular Model Kit

This 419-piece set is designed for classrooms and curious learners alike, offering 179 atom pieces that cover common elements such as hydrogen, carbon, oxygen, nitrogen, sulfur, chlorine, bromine, iodine, and phosphorus. The pieces arrive in smooth polypropylene and LDPE links, color coded for quick identification, and stored in a sturdy box to keep everything organized and portable.

What makes this kit stand out is the ability to model more than standard valence. Four tetrahedral holes appear in key atoms such as carbon, oxygen, nitrogen, sulfur, and phosphorus, enabling representations of molecules and ions that go beyond basic valence, including examples like carbon monoxide and ammonium ion. The kit also includes 30 lone-pair pieces, 30 space-filling bonds (V-bonds), and two bond lengths to support single, double, and triple bond representations, giving you flexibility in building diverse structures.

In addition to atoms, there are 240 bonds in medium length and 25 long flexible bonds, letting you illustrate different bond types and molecular geometries. The gray metal spheres come in two shades with multiple holes to recreate common geometries found in metal complexes, such as octahedral, square planar, trigonal bipyramidal, and linear forms. This setup supports exploration of stereochemistry and enantiomers in an interactive way.

The kit is designed for ease of use: color-coded parts help with quick identification, and the included instructional guide provides step-by-step paths to building representative molecules and ions. It is suitable for organic, inorganic, and general chemistry learning, classroom demonstrations, and independent study. Whether used for teacher-led lessons, student projects, or home exploration, this kit turns abstract structures into tangible, 3D models that support spatial understanding.

What you get

• 179 atom pieces representing common elements
• 240 bonds including medium-length and long flexible options
• 30 lone-pair pieces
• 30 V-bonds for space-filling models
• 4 tetrahedral-hole atoms for advanced valence scenarios
• ABS storage box and an instructional guide

Why choose RELIANCER

• Non-toxic polypropylene and LDPE components
• Color-coded parts for quick learning and collaboration
• Metal complex geometries represented with realistic shapes
• Portable, durable storage solution for classrooms or labs

Note that the kit supports exploration and visualization of chemical structures; outcomes depend on user engagement and study goals.