Chemical Bonds and Intermolecular Forces
Three basic types of chemical bonds - Covalent bonds
- Polar covalent bonds
- Ionic bonds.
Intermolecular forces are defined as attractive forces between molecules. Can also be a repulsive force. - These forces act between molecules or between molecules and ions
There are different types of inter-molecular forces. - Dipole-dipole
- Dipole-dipole interactions results from attractive forces between molecules with a permanent dipole
- Hydrogen Bonding
- Hydrogen bonding is a relatively strong dipole-dipole interaction that occurs between a polar bond containing a hydrogen atom and an electronegative Oxygen, Nitrogen or Fluorine
- Hydrogen bonding is strongest van der Waals force
- It is a special kind of dipole-dipole interaction.
- Dipole-induced dipole
- (London) Dispersion forces
- These are the weakest, resulting from instantaneous dipoles in neighboring molecules.
Van der Waals forces refer to dipole-dipole, dipole-induced dipole and dispersion forces.
Chemical Bonds - Back to Chemistry Help
Intermolecular Forces - Back to SG Learn Online
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