PERIODIC TABLE

Silicon

Atomic No. 14 Si Silicon

About Silicon

Silicon is a metalloid with atomic number 14 that forms strong bonds with oxygen and many other elements. Elemental silicon is used in semiconductor devices and solar cells, while silica and silicates are major constituents of glass and ceramics. Silicon carbide is used in power semiconductor devices, whereas silicon nitride is used in insulating substrates, bearings and other structural ceramic components.

Properties

Atomic Number
14
Atomic Symbol
Si
Atomic Mass
28.0855
CAS No.
7440-21-3
Density
2.33 g/cm³
Series
metalloid
Melting Point
1,414°C
Boiling Point
2,900°C
Thermal Conductivity
1.5 W/cm °C
Heat of Fusion
50.2 kJ/mol
Heat of Vaporization
359 kJ/mol
Electronegativity
1.9 pauling
Crystal Structure
Tetrahedral
Electrical Conductivity
1000 S/m

Silicon Products

Browse Lorad materials associated with Silicon and refine the list by chemistry, application, or availability.

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