|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
silvery
|
|
gptkbp:atomicNumber
|
97
|
|
gptkbp:atomicWeight
|
247
|
|
gptkbp:block
|
f-block
|
|
gptkbp:boilingPoint
|
2627 °C
|
|
gptkbp:CASNumber
|
7440-40-6
|
|
gptkbp:category
|
actinide series
synthetic element
transuranium element
|
|
gptkbp:crystalSystem
|
double hexagonal close-packed
|
|
gptkbp:density
|
14.78 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Albert_Ghiorso
gptkb:Glenn_T._Seaborg
gptkb:Stanley_G._Thompson
gptkb:Kenneth_Street,_Jr.
|
|
gptkbp:discoveredIn
|
1949
|
|
gptkbp:foundIn
|
nuclear reactors
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Berkelium
|
|
gptkbp:isotopes
|
gptkb:Berkelium-247
gptkb:Berkelium-249
gptkb:Berkelium-250
|
|
gptkbp:meltingPoint
|
986 °C
|
|
gptkbp:mostStableIsotope
|
gptkb:Berkelium-247
|
|
gptkbp:namedAfter
|
gptkb:Berkeley,_California
|
|
gptkbp:notFoundInNature
|
true
|
|
gptkbp:oxidationStates
|
+3
+4
|
|
gptkbp:periodicTableGroup
|
actinide
|
|
gptkbp:phaseAtSTP
|
gptkb:stone
|
|
gptkbp:radioactive
|
true
|
|
gptkbp:symbol
|
gptkb:Bk
|
|
gptkbp:uses
|
scientific research
|
|
gptkbp:bfsParent
|
gptkb:The_Transuranium_Elements
|
|
gptkbp:bfsLayer
|
5
|