Diamond Crystal Model STEM Lab
Product Code : SCL-M-12448
The Diamond Crystal Model by Educational Instrument India is a premier pedagogical tool designed to bring the complex world of solid-state chemistry into the palms of students' hands. Diamond, the hardest known natural substance, owes its properties to its unique atomic arrangement. This STEM Lab model provides a clear, three-dimensional visualization of the $sp^3$ hybridization of carbon atoms.
Each carbon atom in this model is represented by a durable sphere with four holes drilled at the precise tetrahedral angle of 109.5°. By assembling this lattice, students can witness firsthand why diamond lacks the cleavage planes found in graphite, making it an excellent resource for teaching crystallography, mineralogy, and organic chemistry.
Technical Specifications
Brand: Educational Instrument India
Model Type: Ball-and-Spoke Atomic Lattice
Material: High-density, non-toxic Polystyrene (Spheres) and reinforced flexible Plastic (Bonds)
Atom Dimensions: 23mm diameter (standard international scale)
Bond Type: Rigid covalent bond representations
Lattice Geometry: Tetrahedral / Face-Centered Cubic (FCC) derivative
Color Scheme: Carbon (Black); Covalent Bonds (Grey/White)
Kit Contents: 30+ Carbon centers, 45+ Bond connectors, and a storage case
How to Use the Diamond Crystal Model
Tetrahedral Assembly: Begin by taking one black sphere (carbon) and inserting four connectors into the pre-drilled holes. This demonstrates the $sp^3$ hybridized state.
Lattice Expansion: Connect the free ends of the bonds to additional carbon spheres. Notice how every atom is linked to four others in a rigid, three-dimensional network.
Visualizing Hardness: Once the model is assembled, attempt to compress it. This physical demonstration helps students understand how the multi-directional covalent bonds contribute to diamond's extreme hardness.
Symmetry Study: Use the model to identify the cubic symmetry and the absence of free electrons, which explains why diamond is an electrical insulator.
Frequently Asked Questions (FAQ)
Q: Is this model suitable for university-level organic chemistry?
A: Yes. It is designed to meet the curriculum requirements of both high school STEM labs and advanced university chemistry courses.
Q: Can the model be easily disassembled for storage?
A: Absolutely. The connectors are designed for a "firm-grip, easy-release" fit, allowing for repeated use in classroom environments.
Q: Does this kit include a comparison to Graphite?
A: While this specific kit focuses on Diamond, Educational Instrument India offers a "Carbon Allotrope Set" that includes both structures for comparative study.
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