Physical and chemical properties of Silicon

Atomic Number:14
Element Symbol:Si
Element Name:Silicon
Atomic Weight:28.0855
Group Number:14
Group Name:none
Period Number:3
Ground State Configuration:[Ne] 3s2 3p2
Ground State Level:3P0
Standard State:Solid
Common Valences:4
Bond Length:235.2
Atomic Radius Empirical:110
Atomic Radius Calculated:111
Covalent Radius Empirical:111
Vander Waals Radius:210
Electron Affinity:133.6
First Ionization Energy:786.5
Pauling Electronegativity:1.90
Sanderson Electronegativity:2.14
Allred Rochow Electronegativity:1.74
Mulliken Jaffe Electronegativity:2.28
Allen Electronegativity:1.916
Density Of Solid:2330
Molar Volume:12.06
Velocity Of Sound:2200
Youngs Modulus:47
Bulk Modulus:100
Mineral Hardness:6.5
Electrical Resistivity:about 100000
Melting Point:1414
Boiling Point:2900
Thermal Conductivity:150
Coefficient Of Linear Expansion:2.6
Enthalpy Of Fusion:50.2
Enthalpy Of Vaporization:359
Enthalpy Of Atmization:456
Most Common Oxidation Numbers:4,-4
Color:Dark grey with a bluish tinge
Discovered By:Jons Jacob Berzelius
Discovered At:Sweden
Discovered When:1824
Origin Of Name:From the Latin word silicis meaning flint

Calculate the molecular weight of Silicon or molecular weight Si.

Also see the full list of chemical elements and atomic weights.

Compounds that contain Silicon