Ionic compounds: •Have molecules that consists of charged ions and these ions have positive and negative charges. • ionic compounds are formed by electrical attraction of two of more ions • ionic compounds have a high melting & boiling points • the bonds of ionic compounds are crystal like • can conduct electricity in water Covalent compounds: • they are non metals bound together & consist of two electrons shared between two atoms • formed when two non metals bound together • they have lower melting and boiling point • they easily separate because they are formed from distinct molecules that don’t bond together • covalent compounds are softer and more flexible • covalent compounds cannot conduct electricity under water because they are non polar