Gold has the atomic number 79 and the chemical symbol Au, making it one of humanity’s higher number of atoms elements. It is a dense, soft, malleable, and ductile metal that is bright and slightly orange in its pure form. A metallic element, gold is just one of the eleven elements that make up group 11. Under normal circumstances, this is a chemical substance that is stable in the solid state. In rocks, veins, and alluvial deposits, free elemental gold can be found in abundance. Mineral inclusions such as pyrite and a crystalline series of native gold contain it. Gold compounds contain tellurium, which is also discovered in minerals.
Even though nitric & hydrochloric acid can dissolve this anion, gold is impervious to them. Gold can be reliably refined using the acid test, which gets its name from the fact that it is a common method of determining not whether metallic substances contain gold. In addition to gold, alkaline cyanide solutions used in gold mining & electroplating can also dissolve the precious metal. Amalgam alloys really aren’t chemical reactions because the gold is only acting as a solute, rather than a catalyst.