Si
Silicon

Silicon is a metalloid from the periodic table. It is a grey-black semi-metallic element that is the second most abundant element in the Earth's crust. Silicon has a wide range of industrial applications, including the production of semiconductors, solar cells, transistors and computer chips.

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Atomic number14
GroupIVA
Period3
Mass28.0855
Latin nameSilicium
Electron configuration[Ne]3s2 3p2
Oxidation state-4, -3, -2, -1, 0, 1, 2, 3, 4