Final answer:
Conductivity is a chemical property of copper, as it is related to how the substance behaves in scenarios such as reacting or interacting, specifically when an electric current is applied.
Step-by-step explanation:
The chemical property of copper among the provided options is its ability to conduct electricity. Chemical properties describe the ability of a substance to undergo changes that transform it into different substances. Copper's ability to conduct electricity is tied to its electron configuration, which allows electrons to flow freely through the material when a voltage is applied, leading to the formation of an electric current. Therefore, conductivity can be considered a characteristic that pertains to the behavior of a substance when it reacts or interacts under certain conditions.