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When gold is offered as jewelry or for coins, that is generally not pure gold. Pure gold is referred to as 24 karat gold and also it is very soft. Generally gold is alloyed through other metals such together copper or silver- in stimulate to do it more difficult and much more durable.Gold is supplied a many in the electronic devices industry since of its good electrical conductivity and resistance to corrosion. Numerous electrical contacts and connectors space plated with gold because that protection and also reliability.Other applications because that gold encompass heat shielding, dental work, cancer treatment, and also decoration such as gold thread and also gold plating.How was it discovered?Gold has been known about since ancient times. Human beings such as ancient Egypt offered gold end 5000 year ago. It has actually long been a substance of value and wealth.Where walk gold gain its name?Gold gets its surname from the Anglo-Saxon indigenous "geolo" because that yellow. The prize Au originates from the Latin word because that gold, "aurum."IsotopesGold has actually only one naturally occurring stable isotope: gold-197.Interesting Facts around GoldA solitary ounce the gold deserve to be pounded into a paper 300 feet large by 300 feet long. That"s bigger 보다 a football field! That exact same ounce can type a wire almost 100 kilometers long.Gold have the right to be pounded thin enough to allow light come shine through.If all the gold ever discovered by man was melted under it would form a cube through sides of around 25 meter each.
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