Elements The atomic number 78 Edition Many people know that atomic estimate 78 is the rarest and closely expensive precious metal on Earth. But something they whitethorn not know is that when realism War II began, platinum was declared a strategic metal by the U.S. organization and its use was banned in non-military purposes. So even if you could generate platinum jewelry, you couldnt procure it. However, platinum is used in many applications, not save jewelry, although that is one of its most popular applications. Platinum is used in dentistry and surgical instrument, science lab tools, and other innate implements. The most common application of platinum is its use as a catalyst in chemical reactions, most significantly in the engines of cars. Platinum highly utilizable and interesting in ways that many people passel hardly begin to imagine. Platinum was predicted by the Italian-French physician Julius Caesar Scaliger in 1557. The first definite husking o f the element was found in Rio Pinto, Colombia, in its alluvial deposits. The breakthrough of platinum is credited to the Spaniard Antonio de Ulloa; in 1748, he published a report of his voyages in Colombia in 1735. The name platinum comes from the Spanish word platina, meaning olive-sized silver:.
When the element was discovered, because its appearance was so akin to silver, the Spanish called platinum platina del Pinto. Platinum (Pt) , atomic number 78, is located in group 10, period 6, and has an atomic commode of 195.09 amu. Platinums electron var. is [Xe]4f145d96s1. Platinum has a density of 21.45 g/cm3. It s change state top is 3,827 °C and its th! awing tip is 1,769 °C. Platinums high melting point makes it an vital component of laboratory equipment. Platinum is a solidness at room temperature, and is silvery-white, lustrous, ductile, and malleable as a virgin metal. Natural platinum is generally non-reactive and non-radioactive although some isotopes of platinum brook weak traces of radioactivity. Platinum has 13 isotopes, but only 6 naturally...If you want to get a full essay, recite it on our website: BestEssayCheap.com
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