What are some features of ionic compounds?

High melting and boiling points because strong ionic bonds must be broken in order to break up the lattice, many ionic compounds are soluble in water - as they dissolve the lattice structure breaks up allowing water molecules to surround the separated ions, many ionic compounds conduct electricity only when molten or in solution as the lattice structure breaks up allowing the ions to be free to move, conduction in ionic compounds can be explained by the movement of ions towards oppositely charged electrodes.