This element is found at the center of two interlocked rings in Jean-Pierre Sauvage (“suh-VAZH’s”) first synthesized catenane. This element’s chloride regenerates the palladium catalyst in the Wacker process. This element catalyzes a cycloaddition that Barry Sharpless called the “cream of the crop” of click chemistry. (-5[1])This metal’s (10[2])sulfate is present in Benedict’s and Fehling’s reagents, which are used to detect (10[1])reducing sugars. Lithium and this metal are found in Gilman reagents. (10[1])This metal’s fully filled 3d orbitals and partially filled 4s orbital make it the second-lightest element to violate the Aufbau principle. This metal produces a characteristic blue-green color in a flame test. (10[1])For 10 points, name this metal (10[1])alloyed with zinc in brass, with atomic number 29 and symbol Cu. ■END■ (10[1])