(Polar molecules, Non-polar molecules, etc.)
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Yes, all molecules and atoms have Van der Waals interactions (can also be referred to as instantaneous dipoles or london dispersion forces). The strongest forces to weakest forces are ion-dipole, hydrogen bonds, dipole-dipole, and then van der waals/instantaneous dipoles/LDF.
Yes, all molecules regardless of their polarity or non-polarity experience Van Der Waals interactions due to shift in the electron cloud density. The order of interaction from strongest to weakest is ion-dipole, dipole-dipole, dipole-induced dipole, induced dipole-induced dipole.
In terms of molecules containing only Van Der Waals interactions: the larger the size of the molecule, the more interactions there are, meaning that the interactions in that given molecule are stronger relative to one with a smaller size/less interactions.
Since every molecule has electrons, every molecule will experience these forces. A van der waal force or induced dipole - induced dipole will be created because some discrepancy in electron density will create induced dipoles.
any atom that interacts with another atom will have these forces because it has electrons that are available for induced dipole movement. that being said, larger atoms have stronger van der waals forces because they have more electrons.
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