@jasleil No, Copper has the 2nd highest conductivity of all the elements. They use gold on electrical contacts because it resists corrosion. Conductivity – 1st-Silver. 2nd-Copper. 3rd-Gold. 4th-Aluminium.
That is a common myth, In fact Silver is the best conductor,
Gold on the other hand does have the lowest "contact resistance" and is used in switches and contacts where minimum resistance is called for.
No. Gold is prized because it's a good conductor which doesn't corrode. Both copper and silver are significantly better conductors of electricity, but corrode over time when exposed to air and moisture.