|
gptkbp:instanceOf
|
group of chemical elements
|
|
gptkbp:abundance
|
not as rare as name suggests
|
|
gptkbp:alsoKnownAs
|
lanthanides
|
|
gptkbp:appearance
|
silvery-white metals
|
|
gptkbp:atomicNumber
|
57-71
|
|
gptkbp:canExtract
|
solvent extraction
ion exchange
|
|
gptkbp:characteristic
|
rare earth elements
|
|
gptkbp:colorInCompounds
|
varied
|
|
gptkbp:crystalSystem
|
hexagonal or orthorhombic
|
|
gptkbp:discoveredBy
|
various chemists
|
|
gptkbp:elementList
|
gptkb:gadolinium
gptkb:terbium
gptkb:praseodymium
cerium
europium
lanthanum
neodymium
samarium
dysprosium
erbium
holmium
lutetium
thulium
ytterbium
promethium
|
|
gptkbp:firstLine
|
lanthanum
|
|
gptkbp:foundIn
|
gptkb:bastnäsite
monazite
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
lanthanoids
|
|
gptkbp:lastElement
|
lutetium
|
|
gptkbp:locationOnPeriodicTable
|
period 6
|
|
gptkbp:magneticProperties
|
many are paramagnetic
|
|
gptkbp:meltingPointRange
|
798–1663 °C
|
|
gptkbp:namedAfter
|
lanthanum
|
|
gptkbp:numberOfRooms
|
15
|
|
gptkbp:oxidationStates
|
+3
|
|
gptkbp:periodicTableGroup
|
f-block
|
|
gptkbp:radioactive
|
promethium
|
|
gptkbp:range
|
6.145–9.841 g/cm³
|
|
gptkbp:similarTo
|
actinoids
|
|
gptkbp:type
|
tarnish in air
|
|
gptkbp:usedIn
|
electronics
glass production
catalysts
alloys
phosphors
magnets
|
|
gptkbp:bfsParent
|
gptkb:lanthanide_series
gptkb:lanthanide_elements
|
|
gptkbp:bfsLayer
|
8
|