chem bonding quiz review

intramolecular

within a molecule

intermolecular

between two molecules

hydrogen bonding

occurs between polar molecules, exists between hydrogen and F, O, N (hydrogen is on the FON), strongest IMF

dipole-dipole attractions

occurs between polar molecules with polar covalent bonding, is NOT as strong as hydrogen bonds, hydrogen does NOT need to be present

molecular-ion attractions

occurs between water and an ionic compound when the compound dissolves in water, aqueous solution

london dispersion or Van der Waals Forces

only IMF that occurs between nonpolar molecules, exist bc temporary dipoles can form, weakest of all IMFs, allow small nonpolar molecules to exist in solid and liquid phases at low temp and high pressure, London dispersion increases with …increasing molecule size, …decreasing distance between molecules (MP and BP of halogens and noble gases INCREASE down the group bc london dispersion INCREASE bc molecular size INCREASES)