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As of 2020, the most expensive non- synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.
Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "silver". [6] [7] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...
Platinum price 1970-2022 Platinum price 1880–2011 Platinum price 1968–2012. Platinum is traded as an ETF (exchange-traded fund) on the London Stock Exchange under the ticker symbol LSE: PHPT and on the New York Stock Exchange as ticker symbols PPLT and PLTM [13] There are also several ETNs (exchange-traded note) available, [14] some of which are inverse to the price of platinum.
The International Prototype of the Kilogram (referred to by metrologists as the IPK or Le Grand K; sometimes called the ur -kilogram, [ 1][ 2] or urkilogram, [ 3] particularly by German-language authors writing in English [ 3][ 4]: 30 [ 5]: 64 ) is an object whose mass was used to define the kilogram from 1889, when it replaced the Kilogramme ...
The set's release on December 13, 2007, at a price of $1,949.95 (around $475 above platinum spot) with a seven-day one-set-per-household limit was met with strong collector interest. [32] First week sales reached 14,682 units, almost half of the maximum ordered mintage of 30,000 units.
Platinum–iridium alloy. The international prototype of the kilogram (IPK) is an artifact standard of platinum–iridium alloy that was defined as having a mass of exactly one kilogram. Platinum–iridium alloys are alloys of the platinum group precious metals platinum and iridium . Typical alloy proportions are 90:10 or 70:30 (Pt:Ir).
Platinum prices jumped last week following an announcement from Anglo American plc that it would shut down several of its South African mines, ultimately removing about 400,000 ounces of the white ...
The ensuing market panic drove the price to an all-time high of $1,340 per troy ounce ($43/g) in January 2001. [85] Around that time, the Ford Motor Company, fearing that automobile production would be disrupted by a palladium shortage, stockpiled the metal. When prices fell in early 2001, Ford lost nearly US$1 billion. [86]
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