Conductivity is a metal conduct heat and electricity well.
- Delocalized electrons = easy electron movement.
- Moving electrons carry current, thermal energy.
- More valence electrons, larger atomic radius = higher conductivity.
Metals are malleable, ductile, and exhibit luster.
- Delocalized electrons = easy to deform metal.
- Easy electron movement = "flexible" bonds.
- Metals = malleable and ductile instead of brittle.
- Movement of electrons between bands = shiny, metallic luster.
- Oscillation of electrons between bands emits light.
Hope this helps!