Tetrahedral Molecular Geometry Model

SKU: 68823W

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Visualize tetrahedral molecular geometry with the Indigo® VSEPR set. Explore AX4 and lone pair variations to understand bond angles and polarity.

The Indigo® Molecular Geometry VSEPR Set includes three models that demonstrate tetrahedral molecular geometry and its variations. One represents a perfect AX4 configuration with four bonded pairs and 109.5° bond angles, as in CH4 (methane). The second and third illustrate AX3E and AX2E2 arrangements, showing how lone pairs distort angles to form trigonal pyramidal and bent geometries, as seen in NH3 and H2O, respectively.

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Details

Learning Outcomes Table

Learning Outcome Activity Concept Reinforced Curricular Link
Recognize tetrahedral geometry and ideal bond angles. Assemble an AX? structure and measure ~109.5° angles. Electron pairs repel equally, forming 3D symmetry. High school: molecular shape and VSEPR basics.
Demonstrate lone pair distortion on geometry. Build AX3E and AX2E2 structures to observe compressed angles. Lone pairs exert greater repulsion than bonding pairs. College: hybridization and molecular polarity.
Correlate molecular shape with polarity and reactivity. Compare CH4 (non-polar) vs. NH3 and H2O (polar). Bond dipoles and geometry determine molecular polarity. Organic & general chemistry: intermolecular forces.
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Trigonal Bipyramidal Molecular Geometry

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Octahedral Molecular Geometry Model

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Parts
P/NDescriptionQTY
68186-20Wobbly bond, 20mm, each50
68216CAtom, Orbit, H "a", white, 1 prong20
68221CAtom, Orbit, Cl "a", green, 1 prong30
68225CAtom, Orbit, C "b", 180 degree, black1
68241CAtom, Orbit, C "j", planar: 120-120-120, black2
68244CAtom, Orbit, C "k", tetrahedral, black3
68258CAtom, Orbit "l", octahedral, grey5
68259CAtom, Orbit, C "m", trigonal bipyramidal, black4
68416COrbital for showing lone electron pair, white, Orbit style10
68417COrbital for showing lone electron pair, black, Orbit style10
Specifications

The parts listed on this page are for the entire kit, not the molecules(s) shown. You can augment this geometry with additional pieces listed on the Orbit Components page.

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