|
gptkbp:instanceOf
|
element group
|
|
gptkbp:alternativeName
|
gptkb:actinoid
|
|
gptkbp:appearance
|
silvery metals
|
|
gptkbp:atomicNumber
|
89 to 103
|
|
gptkbp:discoveredBy
|
gptkb:Friedrich_Oskar_Giesel
|
|
gptkbp:discoveryPeriod
|
late 19th to 20th century
|
|
gptkbp:firstLine
|
actinium
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Actinide
|
|
gptkbp:IUPACGroupName
|
actinides
|
|
gptkbp:lastElement
|
gptkb:lawrencium
|
|
gptkbp:meltingPointRange
|
~913 K to 1900 K
|
|
gptkbp:mostCommonElement
|
gptkb:uranium
|
|
gptkbp:mostStableElement
|
thorium
|
|
gptkbp:namedAfter
|
actinium
|
|
gptkbp:namedFor
|
gptkb:International_Union_of_Pure_and_Applied_Chemistry
|
|
gptkbp:naturalOccurrence
|
few occur naturally
|
|
gptkbp:notableIsotope
|
gptkb:U-235
gptkb:Pu-239
gptkb:Th-232
|
|
gptkbp:notablePlace
|
gptkb:americium
gptkb:berkelium
gptkb:californium
gptkb:curium
gptkb:einsteinium
gptkb:mendelevium
gptkb:nobelium
gptkb:lawrencium
fermium
neptunium
plutonium
|
|
gptkbp:numberOfRooms
|
15
|
|
gptkbp:oxidationStates
|
+3, +4, +5, +6
|
|
gptkbp:periodicTableGroup
|
f-block
period 7
|
|
gptkbp:positionInPeriodicTable
|
below lanthanides
|
|
gptkbp:radioactive
|
all are radioactive
|
|
gptkbp:range
|
10 to 20 g/cm³
|
|
gptkbp:similarTo
|
lanthanide
|
|
gptkbp:symbolRange
|
gptkb:Ac_to_Lr
|
|
gptkbp:syntheticElements
|
most are synthetic
|
|
gptkbp:type
|
highly reactive
|
|
gptkbp:uses
|
gptkb:nuclear_reactor
nuclear weapons
radiotherapy
smoke detectors
|
|
gptkbp:bfsParent
|
gptkb:Periodensystem
|
|
gptkbp:bfsLayer
|
5
|