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申请短文ESSAY范文模板十七(化学)

 

Research Essay on Silicon

Silicon is a chemical element under number 14, bearing the marking Si. Being one of the most widely-spread metalloids, it is the 8th most abundant element in the Universe; although in nature it almost never exists in pure form, most often being encountered as a component element of silica and other chemical compounds. In the Earth’s crust it is, however, second only to oxygen in abundance, making up to 30% of its total mass.

Silicon was first discovered by Antoine Lavoisier in 1787, although the honor of identifying it is generally ascribed to Berzelius, who did it forty years later.

Being one of the most widely spread elements in existence, silicon throughout the history of human civilization played a very important role in architecture and construction, because it served as a component of many building materials, such as glass, concrete and stone. The most dramatic impact of silicon on the human existence and the world’s economics was caused, however, only in the 20th century, when it became widely used in the production of semiconductors and transistors that have later evolved into computer chips, laying a foundation for the whole information industry that is one of the most characteristic features of modern times.

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