How do I explain the difference between ionic, covalent and metallic bonded substances?
Ionic is when electrons are transfered between atoms. Ionic crystals consist of a lattice of positive and negative ions which are in a regular pattern. Ionic crystals have high melting points because of stronge electrostatic forces. Ionic crystal also do not conduct electricity when solid, only when melted or dissolved in water because the negatively charged particles are free to move. I don’t really know what you can do with one though? Metallic structures are held in place by a sea of delocalised electrons. These delocalised electrons are the reason why metallic structures can conduct electricity, the elctrons are free to move and carry charge. They also have high b.p’s and m.p’s.Metal can be used for stuff that is made out of metal? Like cars and baking trays? Molecular crystals (Covalent-the annoying confusing stuff) have low melting points. This is because of the weak intermolecular forces. Van der waals are the weakest of all the intermolecular forces present in molecular crystal
