Silver (Ag) is a chemical element of the 5th period. It is characterized by the highest electrical conductivity of all elements and the highest thermal conductivity of all metals. Silver is one of the soft and malleable metals. Like all precious metals, silver is one of the heavy metals. In most cases silver is won from ores of copper, copper-nickel, lead or lead-zinc but also a refining of silver (electrolytic copper cleaning). © 2017 SUBSTRATEC. All Rights Reserved.