Conductivity refers to the ability of a material to transmit energy. There are different types of conductivity, including electrical conductivity, thermal conductivity, and acoustical conductivity. The most electrically conductive element is silver , followed by copper and gold. Silver also has the highest thermal conductivity of any element and the highest light reflectance. Although it is the best conductor , copper and gold are used more often in electrical applications because copper is less expensive and gold has a much higher corrosion resistance.
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