lutetium
E605199
chemical element
isotope of lutetium
lutetium compound
medical radioisotope
radioactive isotope of lutetium
rare earth metal
Lutetium is a dense, silvery-white rare earth metal and the last element in the lanthanide series, used in catalysts, scintillators, and specialized alloys.
Observed surface forms (5)
| Surface form | Occurrences |
|---|---|
| Lutetium | 0 |
| Lutetium-177 | 0 |
| Lutetium oxide (Lu2O3) | 0 |
| Lutetium-175 | 0 |
| Lutetium-176 | 0 |
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
chemical element
ⓘ
isotope of lutetium ⓘ lutetium compound ⓘ medical radioisotope ⓘ radioactive isotope of lutetium ⓘ rare earth metal ⓘ |
| appearance | silvery-white metal ⓘ |
| atomicNumber | 71 ⓘ |
| belongsToSeries | rare earth elements ⓘ |
| blockInPeriodicTable | f-block ⓘ |
| boilingPoint | 3402 °C ⓘ |
| CASNumber | 7439-94-3 ⓘ |
| category | transition between lanthanides and 5d transition metals ⓘ |
| chemicalSymbol | Lu ⓘ |
| crystalStructure | hexagonal close-packed ⓘ |
| densityAtRoomTemperature | 9.84 g/cm³ ⓘ |
| discoveredBy |
Carl Auer von Welsbach
NERFINISHED
ⓘ
Georges Urbain NERFINISHED ⓘ |
| electronegativityPauling | 1.27 ⓘ |
| electronicConfiguration | [Xe] 4f14 5d1 6s2 ⓘ |
| formsCompound | lutetium oxide (Lu2O3) ⓘ |
| groupInPeriodicTable | lanthanides ⓘ |
| hardness | relatively hard rare earth metal ⓘ |
| isLastElementOfSeries | lanthanide series ⓘ |
| isotopes |
Lutetium-175
ⓘ
Lutetium-176 ⓘ |
| isStableInAir | slowly tarnishes in air ⓘ |
| magneticOrdering | paramagnetic at room temperature ⓘ |
| meltingPoint | 1663 °C ⓘ |
| mostAbundantIsotope | Lutetium-175 NERFINISHED ⓘ |
| mostCommonOxidationState | +3 ⓘ |
| namedAfter |
Lutetia
NERFINISHED
ⓘ
ancient name of Paris ⓘ |
| naturalOccurrence | primordial ⓘ |
| occursInMineral |
monazite
ⓘ
xenotime NERFINISHED ⓘ |
| oxidationState | +3 ⓘ |
| periodInPeriodicTable | 6 ⓘ |
| productionMethod |
ion-exchange separation from rare earth mixtures
ⓘ
solvent extraction from rare earth ores ⓘ |
| radioisotopeUse | Lutetium-177 in targeted cancer therapy ⓘ |
| reactsWith |
acids
ⓘ
halogens ⓘ |
| standardAtomicWeight | 174.9668 ⓘ |
| standardState | solid at 25 °C ⓘ |
| thermalNeutronCaptureCrossSection | high ⓘ |
| use |
Lutetium oxyorthosilicate (LSO) scintillators for PET scanners
ⓘ
catalyst in petroleum cracking ⓘ catalyst in polymerization reactions ⓘ geochronology and geochemical tracing ⓘ radioligand therapy for neuroendocrine tumors ⓘ research in high-temperature superconductors ⓘ scintillator materials ⓘ specialized high-strength alloys ⓘ |
| yearOfDiscovery | 1907 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.