|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:atomicNumber
|
95
|
|
gptkbp:atomicWeight
|
243
|
|
gptkbp:boilingPoint
|
2880 K
|
|
gptkbp:CASNumber
|
7440-35-9
|
|
gptkbp:category
|
synthetic element
radioactive element
transuranic element
|
|
gptkbp:color
|
silvery-white
|
|
gptkbp:crystalSystem
|
double hexagonal close-packed
|
|
gptkbp:density
|
12.0 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Albert_Ghiorso
gptkb:Glenn_T._Seaborg
gptkb:Leon_O._Morgan
gptkb:Ralph_A._James
|
|
gptkbp:discoveredIn
|
1944
|
|
gptkbp:electronConfiguration
|
[Rn] 5f7 7s2
|
|
gptkbp:electronegativity
|
1.3
|
|
gptkbp:firstIsolatedAt
|
gptkb:University_of_California,_Berkeley
|
|
gptkbp:foundIn
|
nuclear reactors
|
|
gptkbp:halfLifeOfAm-241
|
432.2 years
|
|
gptkbp:halfLifeOfAm-243
|
7370 years
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
americium
|
|
gptkbp:isotopes
|
gptkb:americium-240
gptkb:americium-242
gptkb:americium-244
gptkb:americium-245
gptkb:americium-246
americium-241
americium-243
|
|
gptkbp:mainIsotope
|
americium-241
americium-243
|
|
gptkbp:meltingPoint
|
1449 K
|
|
gptkbp:namedAfter
|
gptkb:Americas
|
|
gptkbp:namedFor
|
gptkb:Glenn_T._Seaborg
|
|
gptkbp:notFoundInNature
|
true
|
|
gptkbp:oxidationStates
|
+2
+3
+4
|
|
gptkbp:partOfSeries
|
actinide series
|
|
gptkbp:period
|
7
|
|
gptkbp:producedBy
|
neutron capture of plutonium
|
|
gptkbp:radioactive
|
true
|
|
gptkbp:relatedGroup
|
actinide
|
|
gptkbp:stateAtRoomTemperature
|
gptkb:stone
|
|
gptkbp:symbol
|
Am
|
|
gptkbp:usedIn
|
neutron sources
smoke detectors
|
|
gptkbp:bfsParent
|
gptkb:Glenn_Seaborg
gptkb:Glenn_T._Seaborg
|
|
gptkbp:bfsLayer
|
4
|