Question: Which element is mixed with gold to make red gold?
Answer: Copper; Copper metabolism; Copper bracelet; Copper history; Cuprum; Element XXIX; Copper sheet; Cuprous; Copper band; Copper (element); Element 29; 1S2 2S2 2P6 3S2 3P6 3D10 4S; Cupreous; Copper sheet metal; Copper fittings; Cu2+; Tommie Copper; Cupric; Red metal; Utah state mineral