Metals are good conductors of electricity. Mobile delocalised electrons within the lattice. Electrons flow in at one end, and the same number flow out the other end. Metals are malleable and ductile. The distortion does not disrupt the metallic bonding.
Metals are lustrous.
Ionic Bonding Bonding between metals and non-metals . Metal atoms have a low number of valence electrons and a low electronegativity. Non-metal atoms have numerous valence electrons . The last three are less common. Ionic Lattice Positive and negative ions attract each other to form a three dimensional continuous lattice structure.