Metal ions confer flavor and odor to metallic elements and compounds. This makes sense since the metal is unreactive. High-purity metallic gold is odorless and tasteless.In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable and ductile metal. Among other applications, it is used in electronics, electrical wiring, dentistry, medicine, radiation shielding, and in coloring glass. Gold is a chemical element with symbol Au (from Latin:aurum) and atomic number 79. Gold has many uses aside from its monetary and symbolic value.While acids dissolve most metals, a special mixture of acids called aqua regia is used to dissolve gold. It is relatively unreactive and resists degradation by air, moisture, or acidic conditions. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. It's abundance in the earth's crust is 0.004 ppm. The remaining portion of the metal usually used in gold jewelry and other items is silver, but items can also consist of other metals or a combination of metals, such as platinum, copper, palladium, zinc, nickel, iron, and cadmium. A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. Though the name is Anglo Saxon, gold originated from the Latin Aurum, or shining dawn, and previously from the Greek.
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