|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
unknown
|
|
gptkbp:atomicNumber
|
105
|
|
gptkbp:atomicRadius
|
unknown
|
|
gptkbp:atomicWeight
|
[268]
|
|
gptkbp:block
|
d-block
|
|
gptkbp:boilingPoint
|
unknown
|
|
gptkbp:CASNumber
|
53850-35-4
|
|
gptkbp:category
|
superheavy element
transition metal
|
|
gptkbp:density
|
unknown (predicted ~29 g/cm³)
|
|
gptkbp:discoveredBy
|
gptkb:Lawrence_Berkeley_National_Laboratory
gptkb:Joint_Institute_for_Nuclear_Research
|
|
gptkbp:discoveredIn
|
1967
|
|
gptkbp:electronConfiguration
|
[Rn] 5f14 6d3 7s2 (predicted)
|
|
gptkbp:foundIn
|
gptkb:Russia
gptkb:United_States
|
|
gptkbp:halfLife
|
Db-268: ~32 hours
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Dubnium
|
|
gptkbp:isotopes
|
gptkb:Db-261
gptkb:Db-262
gptkb:Db-263
gptkb:Db-264
gptkb:Db-265
gptkb:Db-266
gptkb:Db-267
gptkb:Db-268
|
|
gptkbp:IUPACName
|
gptkb:Dubnium
|
|
gptkbp:meltingPoint
|
unknown
|
|
gptkbp:mostStableIsotope
|
gptkb:Db-268
|
|
gptkbp:namedAfter
|
gptkb:Dubna,_Russia
gptkb:Dubna
|
|
gptkbp:namedFor
|
gptkb:IUPAC
|
|
gptkbp:neutrons
|
varies by isotope
|
|
gptkbp:oxidationStates
|
+3
+5
+4
|
|
gptkbp:period
|
7
|
|
gptkbp:positionInPeriodicTable
|
period 7, group 5
|
|
gptkbp:previousName
|
gptkb:unnilpentium
|
|
gptkbp:protons
|
105
|
|
gptkbp:radioactive
|
true
|
|
gptkbp:relatedGroup
|
5
|
|
gptkbp:stateAtRoomTemperature
|
solid (predicted)
|
|
gptkbp:symbol
|
gptkb:Db
|
|
gptkbp:uses
|
no practical uses, research only
|
|
gptkbp:bfsParent
|
gptkb:The_Transuranium_Elements
|
|
gptkbp:bfsLayer
|
5
|