scandium
E600125
Scandium is a soft, silvery-white transition metal (atomic number 21) used in high-performance alloys and lighting, often associated with the rare earth elements.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Scandium | 0 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
chemical element
ⓘ
transition metal ⓘ |
| abundanceInEarthsCrust | about 22 ppm ⓘ |
| appearance | silvery-white metal ⓘ |
| associatedWith | rare earth elements ⓘ |
| atomicNumber | 21 ⓘ |
| atomicWeight | 44.955908 ⓘ |
| belongsToSeries | transition metals ⓘ |
| block | d-block ⓘ |
| boilingPointKelvin | 3109 ⓘ |
| CASNumber | 7440-20-2 ⓘ |
| category | metal ⓘ |
| chemicalSymbol | Sc ⓘ |
| commonOxidationState | +3 ⓘ |
| crystalStructure | hexagonal close-packed ⓘ |
| densityAtRoomTemperature | 2.985 g/cm³ ⓘ |
| discoveredBy | Lars Fredrik Nilson NERFINISHED ⓘ |
| discoveryLocation | Sweden NERFINISHED ⓘ |
| electricalResistivity | 0.00000061 Ω·m at 20 °C ⓘ |
| electronConfiguration | [Ar] 3d1 4s2 ⓘ |
| electronegativityPauling | 1.36 ⓘ |
| firstIonizationEnergyKilojoulePerMole | 633.1 ⓘ |
| forms |
Sc2O3
ⓘ
ScCl3 ⓘ ScF3 ⓘ |
| group | 3 ⓘ |
| isConsidered | rare ⓘ |
| isotopes | 45Sc ⓘ |
| magneticOrdering | paramagnetic ⓘ |
| meltingPointKelvin | 1814 ⓘ |
| mostAbundantIsotope | 45Sc ⓘ |
| namedAfter | Scandinavia NERFINISHED ⓘ |
| occursInMineral |
euxenite
ⓘ
gadolinite NERFINISHED ⓘ thortveitite ⓘ |
| oxidationState | +3 ⓘ |
| period | 4 ⓘ |
| radioactiveIsotope |
44Sc
ⓘ
46Sc ⓘ 47Sc ⓘ |
| standardState | solid ⓘ |
| thermalConductivity | 15.8 W/(m·K) ⓘ |
| usedIn |
aerospace components
ⓘ
electronics research ⓘ high-intensity discharge lamps ⓘ high-performance aluminum alloys ⓘ metal halide lamps ⓘ solid oxide fuel cells ⓘ sports equipment ⓘ |
| yearDiscovered | 1879 ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.