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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". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...
The coin had a face value of 100 Estonian kroons, a platinum purity of 999/1000, a weight of 7.775 grams, [14] and a diameter of 18.0 mm. [15] The coin was designed by Tiit Jϋrna and produced by the Mint of Finland with a quantity of 3,000 pieces.
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For stable elements, the formal standard atomic weight (s.a.w.) is added, as published by CIAAW. When the s.a.w. is in interval-notation, its conventional value is added too. Data is retrieved from central s.a.w. values lists, formatting is by {{Infobox element/standard atomic weight format}} (same as {{infobox element}}). Example:
Country Name of bullion coin Fineness weights options in troy ounces (ozt) Years Minted Australia: Emu.9995: 1 ozt: 1995–1998 Canada: Palladium Maple Leaf.9995: 1 ozt: 2005–2010
The Platinum Eagle is authorized by the United States Congress, [4] and is backed by the United States Mint for weight, content, and purity. Its obverse was designed by John Mercanti , and portrays the Statue of Liberty ( Liberty Enlightening the World ) by Frédéric Auguste Bartholdi .
An average 70 kg human body is about 0.01% heavy metals (~7 g, equivalent to the weight of two dried peas, with iron at 4 g, zinc at 2.5 g, and lead at 0.12 g comprising the three main constituents), 2% light metals (~1.4 kg, the weight of a bottle of wine) and nearly 98% nonmetals (mostly water).
A piece of alloy metal containing a precious metal may also have the weight of its precious component referred to as its "fine weight". For example, 1 troy ounce of 18 karat gold (which is 750 ‰ gold) may be said to have a fine weight of 0.75 troy ounces. Most modern government-issued bullion coins specify their fine weight.