ionic bonding
strong electrostatic attractions between oppositely charged ions (metal + non-metal)
covalent bonding
strong electrostatic attraction between two positive nuclei and the shared pair of electrons between them ( non-metal + non-metal)
metallic bonding
strong electrostatic attraction between metal positively charged ions and a sea of negatively shared delocalised electrons ( metal and non metal)
ionic bonding structure
giant ionic lattice
giant covalent structure (names)
diamond, graphite and graphene , silicone dioxide
metallic bonding structure
giant metallic lattice