Rates are quoted in us dollars per Troy ounce on the world market of precious metals today: 15/11/2024
Rhodium (Rh) is the ninth element group (in the old system — side subgroup of the eighth group) the fifth period of the periodic system of chemical elements D. I. Mendeleev, the atomic number — 45, solid transition metal, silvery-white noble metal of the platinum group.
The metal opened in 1803 by Englishman William Hyde Wollaston in the course of work with native platinum, rhodium is extremely rare and trace elements in the world annually produces at least 30 tonnes of rhodium.
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.