Worksheet on the properties of metals, including a diagram of metallic bonding and educational questions.

1. Metals conduct electricity because they have free electrons that can move easily through the metal lattice, carrying electric current.
2. Metals are malleable and ductile because their atoms are arranged in a closely packed structure with metallic bonds that allow layers of atoms to slide over each other without breaking the bond.
3. Metals are shiny because their free electrons reflect light, giving them a characteristic luster.
4. Metals are good conductors of heat because the free electrons transfer kinetic energy rapidly through the material when heated.
5. Metals are generally hard and strong (with exceptions like sodium or lead) due to the strength of metallic bonding and the close packing of atoms, which resist deformation.