The atomic number is 29 and the mass number is 63.546. Copper's period number is 4 and its group number is 11. It is a transition metal. Its state of matter is a solid. It is a metal.
Copper wire is suitable for use in crafts or for electrical grounding wire use.
Gunmetal is a type of bronze - an alloy of copper.
All US coins are now copper alloys.