Understand how molecular geometry determines polarity with Indigo® VSEPR theory models. Explore polar vs nonpolar shapes like H2O (MgCl2), CO2, and PF5.
Explore how molecular geometry controls polarity using the Indigo® VSEPR Model Set. By comparing symmetrical and asymmetrical shapes, students can visualize how bond dipoles either cancel or reinforce each other. This hands-on study makes abstract polarity concepts tangible, linking geometry, electronegativity, and molecular symmetry.
| Learning Outcome | Description |
|---|---|
| Relate Geometry to Polarity | Understand that molecular symmetry determines whether bond dipoles cancel or combine to form a net dipole. |
| Identify Polar and Nonpolar Molecules | Model examples such as CO2 (nonpolar) and H2O (polar) to visualize dipole alignment. |
| Connect VSEPR Shapes to Real Molecules | Apply molecular geometry to predict polarity in trigonal pyramidal, bent, and tetrahedral compounds. |
| Explain Property Differences | Relate polarity to observable behaviors like solubility, melting point, and intermolecular attraction. |
| Visualize Dipole Moments | Use model orientation to illustrate the direction and magnitude of molecular dipoles. |
| P/N | Description | QTY |
|---|---|---|
| 68186-20 | Wobbly bond, 20mm, each | 50 |
| 68216C | Atom, Orbit, H "a", white, 1 prong | 20 |
| 68221C | Atom, Orbit, Cl "a", green, 1 prong | 30 |
| 68225C | Atom, Orbit, C "b", 180 degree, black | 1 |
| 68241C | Atom, Orbit, C "j", planar: 120-120-120, black | 2 |
| 68244C | Atom, Orbit, C "k", tetrahedral, black | 3 |
| 68258C | Atom, Orbit "l", octahedral, grey | 5 |
| 68259C | Atom, Orbit, C "m", trigonal bipyramidal, black | 4 |
| 68416C | Orbital for showing lone electron pair, white, Orbit style | 10 |
| 68417C | Orbital for showing lone electron pair, black, Orbit style | 10 |
See Parts list for details. Additional pieces can be bought separately from the Orbit Components page.