What characteristics of copper and aluminum causes them to be good conductors what is the effect of this

They have less resistance, the less an item resists, the more it conducts.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.