|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:allotropes
|
none
|
|
gptkbp:appearance
|
silvery-white
|
|
gptkbp:atomicNumber
|
70
|
|
gptkbp:atomicWeight
|
173.045
|
|
gptkbp:block
|
f-block
|
|
gptkbp:boilingPoint
|
1196°C
|
|
gptkbp:CASNumber
|
7440-64-4
|
|
gptkbp:category
|
gptkb:metal
rare earth element
|
|
gptkbp:crystalSystem
|
face-centered cubic
|
|
gptkbp:density
|
6.90 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Jean_Charles_Galissard_de_Marignac
|
|
gptkbp:discoveredIn
|
1878
|
|
gptkbp:ductility
|
ductile
|
|
gptkbp:electricalResistivity
|
3.5 μΩ·cm (at 20°C)
|
|
gptkbp:electronConfiguration
|
[Xe] 4f14 6s2
|
|
gptkbp:electronegativity
|
1.1 (Pauling scale)
|
|
gptkbp:foundIn
|
gptkb:Switzerland
minerals such as monazite and xenotime
|
|
gptkbp:hardness
|
Mohs 1.5
|
|
gptkbp:isotopes
|
gptkb:Yb-168
gptkb:Yb-170
gptkb:Yb-171
gptkb:Yb-172
gptkb:Yb-173
gptkb:Yb-174
gptkb:Yb-176
|
|
gptkbp:magnetType
|
paramagnetic
|
|
gptkbp:malleability
|
soft
|
|
gptkbp:meltingPoint
|
824°C
|
|
gptkbp:namedAfter
|
gptkb:Ytterby
gptkb:Swedish_village_of_Ytterby
|
|
gptkbp:oxidationStates
|
+2
+3
|
|
gptkbp:period
|
6
|
|
gptkbp:radioactive
|
stable (all naturally occurring isotopes are stable)
|
|
gptkbp:relatedGroup
|
lanthanide
|
|
gptkbp:symbol
|
gptkb:Yb
|
|
gptkbp:thermalConductivity
|
38.5 W/(m·K)
|
|
gptkbp:toxicity
|
low toxicity
|
|
gptkbp:type
|
slowly oxidizes in air
|
|
gptkbp:uses
|
used in lasers
improving grain refinement in stainless steel
used in atomic clocks
used in certain types of fiber optics
|
|
gptkbp:bfsParent
|
gptkb:Yb:YAG
|
|
gptkbp:bfsLayer
|
7
|
|
http://www.w3.org/2000/01/rdf-schema#label
|
Ytterbium (Yb)
|