Question

which properties make a metal a good material to use for electrical wires?
malleability and reactivity
conductivity and ductility
ductility and malleability
reactivity and conductivity

Explanation:

• Conductivity: Metals have free - moving electrons that can carry an electric current, which is essential for electrical wires.
• Ductility: Ductility means a metal can be drawn into thin wires without breaking. Malleability (ability to be hammered into sheets) is not directly relevant for wire - making. Reactivity (tendency to undergo chemical reactions) is not a desired property for electrical wires as it can lead to corrosion and other unwanted chemical changes.

Answer:

conductivity and ductility