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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 ...
Like all test coins, the platinum farthing has a high historic and numismatic value. This coin is also interesting because it features the portrait of the already deceased monarch George III (1738–1820). [3] The only case when platinum coins were used as a regular national currency [4] was in Russia, where coins were circulated between 1828 ...
Naturally occurring platinum and platinum-rich alloys were known by pre-Columbian Americans for many years. [5] However, even though the metal was used by pre-Columbian peoples, the first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger (1484–1558) as a description of a mysterious metal found in Central American mines between ...
Platinum is a particularly useful metal; over a third of the annual world production goes for catalytic converters, and new fuel cell technology depends on it as well. However, when it comes to ...
Platinum prices are stable year to date but have risen 14% over the past year. Costco is diversifying its precious-metals business by selling 1-ounce bars of platinum for $1,090.
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Platinum is traded in the spot market with the code "XPT". When settled in United States dollars, the code is "XPTUSD". As the cost of platinum per ounce fell, the cost per ounce for other metals in the platinum group - especially palladium - rose strongly. As of November 2022, palladium sits at around US$1900 per ounce, compared to US$980 for ...
The radioactivity in MBq per gram of each of the platinum group metals which are formed by the fission of uranium. Of the metals shown, ruthenium is the most radioactive. Palladium has an almost constant activity, due to the very long half-life of the synthesized 107 Pd, while rhodium is the least radioactive.