|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
silvery-white
|
|
gptkbp:atomicNumber
|
64
|
|
gptkbp:atomicWeight
|
157.25
|
|
gptkbp:block
|
f-block
|
|
gptkbp:boilingPoint
|
3273 K
|
|
gptkbp:CASNumber
|
7440-54-2
|
|
gptkbp:category
|
rare earth element
|
|
gptkbp:countryOfOrigin
|
gptkb:China
gptkb:India
gptkb:USA
|
|
gptkbp:crystalSystem
|
hexagonal close-packed
|
|
gptkbp:density
|
7.90 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Jean_Charles_Galissard_de_Marignac
|
|
gptkbp:discoveredIn
|
1880
|
|
gptkbp:electronConfiguration
|
[Xe] 4f7 5d1 6s2
|
|
gptkbp:electronegativity
|
1.20
|
|
gptkbp:foundIn
|
gptkb:bastnäsite
monazite
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Gd
|
|
gptkbp:isotopes
|
gptkb:Gd-153
Gd-152
Gd-155
Gd-156
Gd-157
Gd-158
Gd-160
|
|
gptkbp:magneticProperties
|
ferromagnetic below 20°C
|
|
gptkbp:meltingPoint
|
1585 K
|
|
gptkbp:namedAfter
|
gptkb:Gadolinite
|
|
gptkbp:oxidationStates
|
+3
|
|
gptkbp:period
|
6
|
|
gptkbp:radioactive
|
stable (natural isotopes)
|
|
gptkbp:relatedGroup
|
lanthanide
|
|
gptkbp:symbol
|
gptkb:Gadolinium
|
|
gptkbp:toxicity
|
moderate
|
|
gptkbp:uses
|
neutron radiography
alloys
phosphors
MRI contrast agent
|
|
gptkbp:bfsParent
|
gptkb:gadolinium
|
|
gptkbp:bfsLayer
|
6
|