London Dispersion Forces

[America Alvarado]

What are London dispersion forces ?

[Cecilia Cisneros 1F]

London Dispersion Forces are synonymous with Induced Dipole-Induced Dipole, Van Der Waals, and Dispersion forces. These type of intermolecular forces tend to appear in all molecules, and when non polar molecules interact with each other they only experience LDFs.

[Melis Kasaba 2B]

London dispersion forces are the weakest type of intermolecular force. I think Lavelle prefers the name dipole-induced dipole interactions because it's more descriptive. Basically, they're a temporary attraction that arises when electrons in two atoms next to each other form temporary dipoles. They can be found in all molecules and play a role in determining states, like all intermolecular forces.

[America Alvarado]

thank you! I understand now

[ShinwooKim_3E]

The weakest intermolecular forces that form very weak, temporary dipoles.

[JTieu_1L]

induced dipole induced dipole
- since there are uneven movement of electrons in molecules they create temporary dipole moments

[805421690]

London Dispersion Forces are synonymous with Induced Dipole-Induced Dipole, Van Der Waals, and Dispersion forces. These type of intermolecular forces tend to appear in all molecules, and when non polar molecules interact with each other they only experience LDFs.

Great simple answer to this, also remember they are the weakest forces! :)

[Nicole Bruno Dis 1B]

London dispersion forces are weak intermolecular forces, as they are temporary attractive forces that occur when the electrons in two nearby atoms occupy positions that thus cause the atoms to form temporary dipoles.

[Shiley_David_1D]

What are London dispersion forces ?

Hello America!

London Dispersion Forces are small electrostatic forces that are caused by movement of electrons within the covalent bonds of molecules that would otherwise have no permanent dipole. As one molecule approaches another, the electrons of one or both are temporarily displaced owing to their mutual repulsion which causes small, temporary dipoles to be set up on the surface of the particles, which then attract one another. These types of forces exists between all atoms and molecules, and increase with surface area and polarization.

Hope this helps!

Shiley

[Arjun_Anumula_3E]

They are temporary induced dipoles that occur in all molecules, but are most observed in non-polar molecules. This effect, caused by the rapidly shifting electrons in their electron clouds, creates temporary regions of partial positive charge and temporary regions with partial negative charge. These such interactions that continuously come and go are forces that keep, for example, the fatty acid tails of the phospholipid bilayer intact within our cell membranes.

[Albert 1I]

London Dispersion Forces, or LDF's, are a type of intermolecular force (usually considered the weakest of the IMF's). Because electrons are moving in the electron cloud, there are instances at a certain points of time in which the electrons are unsymmetrical about the nucleus. This creates a temporary dipole as one side of the nucleus has more electrons than the other side.

[405825570]

To clarify a little, LDFs happen between molecules. As electrons move in atoms' electron clouds, sometimes they arrange in a way where an atom in in a molecule has a slightly negative side (because the electrons grouped there) and that is attracted to a slightly positive side of another atom. These interactions are temporary and weak; however, many of them happening at the same time can have a large impact.

[Arshaun Faraji 2H]

These are the weakest type of intermolecular forces. They form extremely weak and temporary dipoles.