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Saturday, November 16, 2013

Platinum

platinum Antonio de Ulloa discovered platinum in South the States in 1735 and by Wood in 1741. Platinum is a silver-white metal that holds even more value then gold. Its atomic image is 78 and its mass is 195.08. It is also one of the heaviest metals. It is a modulation metal and its electron configuration is [Xe ]6s14f145d9. This element has actually erratic properties, which make it valuable. First of all, it is very easily shaped. It sight be shaped and working into almost every contingent way, from disregard wire too large sheets. Platinum is a upstanding who?s melting even out is 2045k and its boiling tear down is 4100k.
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The metal was used by pre-Columbian Indians. Platinum occurs native, go with by small quantities of iridium, osmium, palladium, ruthenium, and rhodium. These all belong to the same base of metals. The metal does not oxidize in air at any temperature. However, halogens, cyanides, sulfur, and caustic alkalis corrode it. Platinum resistance wires ar used for...If you want to get a full essay, label it on our website: OrderCustomPaper.com

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