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Is silicon a solid?

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Silicon is a chemical element with symbol Si and atomic number 14. It is a hard and brittle crystalline solid with a blue-grey metallic lustre; and it is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, and lead are below it. It is relatively unreactive. read more

Silicon is the seventh most abundant element in the universe and the second most abundant element in the earth's crust. Today, silicon is produced by heating sand (SiO 2) with carbon to temperatures approaching 2200°C. Two allotropes of silicon exist at room temperature: amorphous and crystalline. read more

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Silicone – plasticisrubbish
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The Element Silicon
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