Is Silicon a Metal? No, silicon is not a metal. It is a metalloid.
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Metalloids are elements that have properties of both metals and non-metals.
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Silicon looks shiny like a metal but is brittle and is not a good conductor of electricity like a true metal (e.g., copper). Its electrical properties can be precisely controlled by adding impurities (doping), which is why it's a semiconductor. This is its most important property.