|
gptkbp:instanceOf
|
gptkb:chemical_series
|
|
gptkbp:abundance
|
not rare in Earth's crust
|
|
gptkbp:alsoKnownAs
|
gptkb:lanthanoids
|
|
gptkbp:atomicNumber
|
57-71
|
|
gptkbp:characteristic
|
high magnetic susceptibility
similar chemical properties
silvery-white metals
|
|
gptkbp:containsElement
|
gptkb:gadolinium
gptkb:terbium
gptkb:praseodymium
cerium
europium
lanthanum
neodymium
samarium
dysprosium
erbium
holmium
lutetium
thulium
ytterbium
promethium
|
|
gptkbp:crystalSystem
|
hexagonal, cubic, or orthorhombic
|
|
gptkbp:discoveredIn
|
gptkb:19th_century
|
|
gptkbp:elementCount
|
15
|
|
gptkbp:endDate
|
lutetium
|
|
gptkbp:firstIsolatedFrom
|
gptkb:Carl_Gustaf_Mosander
|
|
gptkbp:groupedWith
|
rare earth elements
|
|
gptkbp:locatedIn
|
f-block
period 6
|
|
gptkbp:meltingPointRange
|
798–1663 °C
|
|
gptkbp:namedAfter
|
lanthanum
|
|
gptkbp:oxidationStates
|
+3
|
|
gptkbp:radioactiveMember
|
promethium
|
|
gptkbp:range
|
6.1–9.8 g/cm³
|
|
gptkbp:separationDifficulty
|
difficult
|
|
gptkbp:textBegins
|
lanthanum
|
|
gptkbp:usedIn
|
electronics
lighting
nuclear reactors
lasers
medical imaging
catalysts
alloys
phosphors
magnets
glass additives
|
|
gptkbp:bfsParent
|
gptkb:Samarium
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
lanthanide series
|