DESCRIPTION OF INTERACTIVE

• dispersion = the electrons around an atom in a molecule are, on average, evenly distributed around the nuclei, but at any time they could all be found on one side of a molecule. At this instant, a mini-negative charge would result which can repel electrons in a nearby molecule. The two molecules attract. 
• dipole = the electrons in a covalent bond in a functional group are not shared equally. This causes a partial negative charge to exist on one end of the functional group, and a partial positive charge on the other. Oppositely charged ends of functional groups on two different molecules attract.
• hydrogen bonding = a special case of dipole involving functional groups containing H bonded to N or O because electrons are more unequally shared. The partial negative and positive charges are stronger. Oppositely charged ends of functional groups on two different molecules attract.
• ionic = the electrons are unequally shared so the functional group is negatively charged or positively charged. Oppositely charged functional groups attract.