Which material is known for the highest thermal conductivity?

Copper is known for having the highest thermal conductivity among the materials listed. This property makes copper highly effective for applications that require excellent heat transfer, such as in heat exchangers and electrical wiring. Its atomic structure allows heat to pass through easily, which is why copper is often favored in industries that prioritize efficient thermal management. In contrast, other metals like aluminum, while also good conductors, do not reach the level of thermal conductivity that copper provides. Steel and brass, although useful in various applications, have lower thermal conductivity compared to copper, which limits their effectiveness in situations requiring rapid heat transfer.