4.4 Intermolecular Forces Flashcards
mostly covalent
change in EN < 0.4
polar covalent
change in EN = (0.4-1.7)
ionic
change in EN >1.7
a polar molecule has
a polar covalent bond and asymmetrical ends
a molecule has a polar covalent bond and symmetrical ends
non-polar molecule
a molecule has a polar covalent bond and symmetrical ends
polar molecule
interactions can happen
between molecules
hydrogen bonds are the
strongest bonds between molecules
hydrogen bonds occur between
two very polar molecules that each contain hydrogen
molecules with a hydrogen bond include
O-H, N-H, F-H bonds
Dipole-dipole interactions happen between
two polar molecules
London-dispersion forces occur between
any two molecules or atoms
london dispersion forces are the weakest and most
temporary