|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:abundanceInEarthCrust
|
27.7%
|
|
gptkbp:appearance
|
gray with a metallic luster
|
|
gptkbp:atomicNumber
|
14
|
|
gptkbp:atomicWeight
|
28.085
|
|
gptkbp:bandGap
|
1.12 eV
|
|
gptkbp:block
|
p-block
|
|
gptkbp:boilingPoint
|
3265°C
|
|
gptkbp:CASNumber
|
7440-21-3
|
|
gptkbp:category
|
metalloid
|
|
gptkbp:crystalSystem
|
diamond cubic
|
|
gptkbp:density
|
2.329 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Jöns_Jacob_Berzelius
|
|
gptkbp:discoveredIn
|
1824
|
|
gptkbp:electronConfiguration
|
[Ne] 3s2 3p2
|
|
gptkbp:electronegativity
|
1.90
|
|
gptkbp:foundIn
|
quartz
sand
silicates
|
|
gptkbp:hardnessMohs
|
6.5
|
|
gptkbp:isotopes
|
gptkb:28Si
gptkb:29Si
gptkb:30Si
|
|
gptkbp:magneticOrdering
|
diamagnetic
|
|
gptkbp:majorCity
|
gptkb:Brazil
gptkb:China
gptkb:Norway
gptkb:Russia
gptkb:United_States
|
|
gptkbp:meltingPoint
|
1414°C
|
|
gptkbp:molarHeatCapacity
|
19.789 J/(mol·K)
|
|
gptkbp:mostStableIsotope
|
gptkb:28Si
|
|
gptkbp:namedAfter
|
Latin 'silex' (flint)
|
|
gptkbp:oxidationStates
|
+2
+4
|
|
gptkbp:period
|
3
|
|
gptkbp:radioactive
|
none (all stable)
|
|
gptkbp:refractiveIndex
|
3.42 (at 590 nm)
|
|
gptkbp:relatedGroup
|
14
|
|
gptkbp:standardState
|
gptkb:stone
|
|
gptkbp:stateAtRoomTemperature
|
gptkb:stone
|
|
gptkbp:symbol
|
gptkb:Si
|
|
gptkbp:thermalConductivity
|
149 W/m·K
|
|
gptkbp:thermalExpansion
|
2.6 µm/(m·K)
|
|
gptkbp:toxicity
|
low
|
|
gptkbp:uses
|
gptkb:ceramics
semiconductors
glass production
solar cells
alloys
|
|
gptkbp:bfsParent
|
gptkb:Microwave_Electronics
|
|
gptkbp:bfsLayer
|
5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Silicon (Si)
|