Silicon
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Silicon is a chemical element, having the chemical symbol Si.
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Its atomic number (the number of protons) is 14. It has a Standard Atomic Weight of 28.0855(3), and is typically found as a solid in its elemental form.
Silicon is considered to be a member of the "Metalloid" class of elements, has a boiling point of 3265 °C , and a melting point of 1414 °C .