Copper is a chemical element with symbol Cu. Copper is a transition metal with atomic number is equal to 29. Copper is present in 11th group and 4th period of the periodic table. The normal phase of copper is solid. Its standard atomic weight is 63.54 grams per mole. The density of copper in solid state is 8.94 grams per centimeter cube. The melting point of copper is1357.77 kelvin. The number of electrons in per shell of an atom of copper is 2, 8, 18, 1. Its electronic configuration is 3d10 4s1. Moreover, copper is an inner transition metal and its electrons are filled in d orbital so, it is placed in d-block of periodic table.