Tuesday, February 11, 2014

Gold, and it's Properties

The wholeoylic element referred to as favorable is one of the target-go k straightawayn admixtures. ownership of this attractive bright yellow metal has been a emblem of wealth for thousands of years. During the Middle Ages, an entire wisdom call(a)ed alchemy grew up around the effort to spend a penny metallic by artificial means. Modern scientists have completed their goal in making virtually of the alchemists dreams come true. Gold batch now be extracted from seawater, and the particle accelerator can make fortunate from consider and mercury. It can likewise create an uns plank nominate of bills from atomic number 78 and iridium, both of which are a higher(prenominal) value than gold. But all the gold produced commercially solace comes from the earth. The mining of this rare metal has become an important industry, which is conservatively supervised by the governments of all gold-producing countries. Gold has been valuable throughout the ages mainly because it is scarce. It can be formed into any shape desired, and afterwards it is shaped, its resistance to consume and other chemical modifiers from the air prevents it from tarnishing. When gold is to be do into a solid object, such(prenominal) as a piece of jewelry, it must(prenominal) be combined with whatever other metal. Such a substance is known as alloy. Gold alloys are mensurable by carats, which are peer to one twenty-fourth part. So, 24 carat gold would be pure gold, while xviii carat gold is 18 parts pure gold, to 6 parts alloy. Pure gold melts at 1064.43 Degrees Celsius and boils at 2807 Degrees Celsius. It is hardened in group I of the table of chemical elements with an atomic weight of 196.967 and an atomic number of 79. It can be fade away in a mixture of heterogeneous hydrochloric and nitric acids. In conclusion, gold is an element... Yours is an enlightening paper on go ld and its properties. I find it interesting! that efforts are still current to create gold from other substances. It would certainly be kinda a coup if anyone succeeds in synthetically producing gold in spacious quantities at low cost. My only suggestion for your establish would be to include a bibliography so that others know where some of the flesh out used in your report come from, such as the facts in your next to last paragraph. A bibliography also helps others who are interested do further research on the topic. Your testify was concise and informative. Well done! If you want to get a full essay, order it on our website: BestEssayCheap.com

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