Which is the best description of hydrogen bonding? The temporary attraction between hydrogen atoms on different molecules resulting from shifts in electron density The association between a hydrogen atom which is somewhat positive because it is bonded to a small electronegative atom and an atom of O, N or F on another molecule The association between hydrogen of one molecule and a region of another molecule which has become negative due to temporary shifts in electron density The unique chemical bonds between hydrogen and any other atom in the same molecule The polarity associated with a bond between hydrogen and a small electronegative atom to which it is bon