Factors Affecting London Dispersion Attractions

This Factors Affecting London Dispersion Attractions interactive also includes:

How can non-polar molecules be attracted to one another? Introduce the phenomenon of London dispersion forces to young chemists through an entertaining interactive. Pupils choose from a variety of molecular shape combinations, then pull on the molecules to see the strength of the intermolecular force that holds them close.

3 Views 2 Downloads NGSS: Adaptable
Instructional Ideas

  • Give the class some simple materials, such as toothpicks, clay, and string, and have them create physical representations of the molecules in the resource
  • To assess their understanding, ask learners to describe the outcome of the test they run on each pair of molecules
Classroom Considerations

  • Discuss the inner workings of London forces before launching the resource
Pros

  • Interactive also depicts molecules re-attaching if they are moved closer together after separation, making it more realistic
  • The wide variety of shapes helps make London forces more apparent to the user
Cons

  • None
NGSS