Silicon

Main Article

Discussion

Related Articles ^[?]

Bibliography ^[?]

External Links ^[?]

Citable Version ^[?]

Properties ^[?]

This editable Main Article is under development and subject to a disclaimer.

[edit intro]

Silicon

28.0855(3)
	Si
14
1s²2s²2p⁶3s²3p²

[ ? ]

Metalloid:

Properties:

In crystalline form, grayish metallic luster. Relatively inert chemically.

Uses:

Concrete, glass, refractories, ceramics, semiconductors.

Silicon is a chemical element, having the chemical symbol Si. Its atomic number (the number of protons) is 14. It has a standard atomic weight of 28.0855 g•mol⁻¹, and is typically found as a solid in its various forms as silicon dioxide, silica and silicates.

Silicon is considered a member of the "Metalloid" class of element. At a pressure of 101.325 kPa, it has a boiling point 3,265 °C, and a melting point of 1,414 °C. In Earth's crust, silicon is the second most abundant element after oxygen, being about 28% of the crust by mass.^[1] Silicon has a density of 2.33 g/cc.

References[edit]

↑ Abundances of the Elements in the Earth's Crust Physics and Astronomy Dept., Georgia State University

[1] Abundances of the Elements in the Earth's Crust Physics and Astronomy Dept., Georgia State University

[1]