›› 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

Dichlorosilane  Cl2H2Si
Disilane  H6Si2
Silane  SiH4
Silicon Dioxide  SiO2
Sodium Silicate  Na2SiO3
Zirconium Orthosilicate  ZrSiO4
Silicon Tetrafluoride  SiF4
Barium Hexafluorosilicate  BaSiF6
Barium Metasilicate  BaSiO3
Barium Silicide  BaSi2
Barium Disilicate  BaSi2O5
Beryllium Silicate  Be2SiO4
Calcium Metasilicate  CaSiO3
Calcium Silicide  CaSi2
Calcium Silicate  Ca2SiO4
Cadmium Silicate  CdSiO3
Cobalt(II) Orthosilicate  Co2SiO4
Dysprosium(II) Silicide  DySi2
Europium(II) Silicide  EuSi2
Iron(II) Orthosilicate  Fe2SiO4
Gadolinium(II) Silicide  GdSi2
Hafnium Orthosilicate  HfSiO4
Hafnium Silicide  HfSi2
Holmium Silicide  HoSi2
Potassium Hexafluorosilicate  K2SiF6
Potassium Silicate  K2SiO3
Lanthanum Silicide  LaSi2
Lithium Metasilicate  Li2SiO3
Magnesium Silicite  MgSiO3
Magnesium Silicide  Mg2Si
Molybdenum(IV) Silicide  MoSi2
Sodium Fluorosilicate  Na2SiF6
Sodium Orthosilicate  Na4SiO4
Lead(II) Metasilicate  PbSiO3
Lead(II) Orthosilicate  Pb2SiO4
Silicon Boride  SiB4
Silicon Bromide  SiBr4
Silicon Carbide  SiC
Silicon Chloride  SiCl4
Silicon Iodide  SiI4
Silicon Sulfide  SiS2
Silicon Nitride  Si3N4
Strontium Silicate  SrSiO4
Tantalum(IV) Silicide  TaSi2
Terbium(IV) Silicide  TbSi2
Thorium(IV) Orthosilicate  ThSiO4
Thorium(IV) Silicide  ThSi2
Titanium(IV) Silicide  TiSi2
Vanadium(IV) Silicide  VSi2
Vanadium(II) Silicide  V3Si
Tungsten(IV) Silicide  WSi2
Ytterbium(V) Silicide  YbSi5
Zinc Orthosilicate  Zn2SiO4
Zirconium(IV) Silicide  ZrSi2