Request pricing and availability
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.