Breaking News English

Gold has an enduring allure for thousands of years. This precious metal has a symbol of elegance and wealth. Scientists have how it stays in such pristine condition and never its shine. Researchers from Tulane University in New Orleans that gold does not or change colour because of the structure of atoms on its surface. Dr Matthew Montemore wrote that the atoms naturally themselves into unique zigzag patterns that chemical reactions with oxygen. He said: "This the gold much more resistant to oxidation." As a result, it does not discoloured, even after centuries of exposure to the elements.

A low level of reactivity to oxygen is chemical nobility. Gold is the most noble of all metals. Its resistance to bonding with oxygen means it its shininess for thousands of years. It also one of the most malleable metals, which it can easily hammered into thin sheets. Gold can be to a thickness of less than 0.1 micrometres — a hundred times thinner than a human hair. Its pure form is why humans have gold for jewellery and currency for more than 5,000 years. It also important uses in electronics, dentistry, spacecraft technology, and medicine. The researchers believe it will to integral in industrial applications.