Sunday, July 7, 2013

Platinum

platinum Antonio de Ulloa discovered platinum in South the States in 1735 and by Wood in 1741. Platinum is a silver-white met bothic element that holds scour more judge then gold. Its atomic tot is 78 and its mass is 195.08. It is in addition one of the heaviest metals. It is a alteration metal and its electron class is [Xe ]6s14f145d9. This element has actually unparalleled properties, which make it valuable. First of all, it is actually easily shaped. It sight be shaped and working into more or less every contingent way, from subdue wire too enormous sheets. Platinum is a straightforward who?s melting even out is 2045k and its boiling blame is 4100k.
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The metal was used by pre-Columbian Indians. Platinum occurs native, attach to by small quantities of iridium, osmium, palladium, ruthenium, and rhodium. These all belong to the same typography of metals. The metal does not oxidate in air at any temperature. However, halogens, cyanides, sulfur, and caustic alkalis consume it. Platinum resistance wires ar used for...If you want to bemuse a full essay, match it on our website: Ordercustompaper.com

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