The pure form of this element is the most ductile and most malleable metal.
In 1920 Fritz Haber began a secret project to extract this element from seawater, after learning of Arrhenius's calculation that there must be eight million tons of it in the oceans. The pure form of this element is the most ductile and most malleable metal. Like platinum, it is most commonly dissolved using aqua regia (AH-kwuh REE-jee-uh). The amount of this metal in an alloy is expressed using units of karats. For 10 points, name this metal, into which alchemists attempted to convert lead.
In 1920 Fritz Haber began a secret project to extract this element from seawater, after learning of Arrhenius's calculation that there must be eight million tons of it in the oceans.
{gold} [or {Au}]