Converting weight percent (wt.%) to atomic percent (at.%) and vice versa

A copper alloy (Cu alloy) is a material made by combining copper with other elements such as zinc, tin, nickel, and aluminum to enhance its properties like strength, corrosion resistance, and electrical conductivity. These alloys are widely used in various applications, including electrical wiring, plumbing, coinage, and musical instruments, due to their excellent conductive and mechanical properties.