Materials that are made up of Atoms whose Electrons are easily freed are called "conductive materials" or "Conductors." Platinum, Gold, and Silver are examples of the very bestConductors of electricity. Gold is used extensively in small quantities for high-value products like: microelectronics, high quality audio components, computer chips, and telecommunications satellites.
Copper and Aluminum are also very excellent Conductors of electricity and much less expensive. Almost all Electrical Wiring is Aluminum or Copper, although many actually contain some for added strength.