Intermolecular forces Flashcards
1
Q
what are intermolecular forces
A
attraction between molecules, much weaker than chemical bonds (covalent)
2
Q
the forces in order from strongest to weakest
A
- ion dipole
- H-bond
- dipole-dipole
- London dispersion
3
Q
,.cwhat is a LD force
A
-attraction due to the constant motion of electrons
- will cause temporary concentration of charge on one side of an atom/molecule
- exist between ALL molecules
- significant only if molecules are very close together
- strength depends on polarizability
4
Q
what is dipole dipole
A
attraction between polar molecules
5
Q
what is hydrogen bonding force
A
-stronger kind of dd
occurs only between molecules with lone pairs on center atom and hydrogen bonded to F, O, N
6
Q
ion dipole
A
-strongest
- between cation or anion