Rates are quoted in us dollars per Troy ounce on the world market of precious metals today: 15/11/2024
Gold (Au) is an element of group 11 (according to the older classification — side subgroup of the first group), the sixth period of the periodic system of chemical elements D. I. Mendeleev, with atomic number 79, precious metal of yellow color.
Pure gold is very heavy but soft metal, reddish jewelry made of gold attached (ligature) impurities of other metals, gold has a high conductivity and low electric resistance.
Troy ounce is a unit of mass equal to 31,1034768 grams.
Noble metals — metals that are not subject to corrosion and oxidation, this property distinguishes them from most "noble" metals, they are also precious metals due to their rarity.