|
gptkbp:instance_of
|
gptkb:isotope
|
|
gptkbp:application
|
medical treatments
nuclear reactors
radiography
used in scientific research
research in nuclear science
oil well logging
|
|
gptkbp:casnumber
|
7440-71-3
|
|
gptkbp:class
|
actinides
|
|
gptkbp:color
|
silvery-white
silvery
|
|
gptkbp:composed_by
|
neutron bombardment of curium
|
|
gptkbp:composed_of
|
metallic
|
|
gptkbp:cooling_system
|
12 W/(m· K)
|
|
gptkbp:discovered_by
|
gptkb:Glenn_T._Seaborg
|
|
gptkbp:discovery
|
gptkb:University_of_California,_Berkeley
|
|
gptkbp:discovery_year
|
1950
|
|
gptkbp:dissolved
|
insoluble
|
|
gptkbp:electronegativity
|
1.3 (Pauling scale)
[ Rn] 5f10 7s2
|
|
gptkbp:environmental_impact
|
radioactive contamination risk
|
|
gptkbp:financial_stability
|
unstable
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Californium-251
|
|
gptkbp:isotopes
|
gptkb:true
98
1.2 barns
unstable isotope
1.0 barns
synthetic isotope
|
|
gptkbp:lifespan
|
898 years
|
|
gptkbp:market_position
|
limited
|
|
gptkbp:mass
|
251
251.0796 u
|
|
gptkbp:melting_point
|
1470 ° C
900 ° C
|
|
gptkbp:members
|
actinides
|
|
gptkbp:mode
|
gptkb:Berkelium-247
alpha decay
|
|
gptkbp:oxidation_states
|
+3, +4
|
|
gptkbp:parent
|
gptkb:Californium-250
|
|
gptkbp:population_density
|
15.1 g/cm³
|
|
gptkbp:power_source
|
6.3 e V
|
|
gptkbp:produces
|
neutron activation of curium
|
|
gptkbp:radioactive_decay
|
emits alpha particles
|
|
gptkbp:roll_rate
|
3/2
|
|
gptkbp:safety
|
handled with care
radioactive material
|
|
gptkbp:storage
|
shielded containers
|
|
gptkbp:structure
|
face-centered cubic
|
|
gptkbp:symbol
|
Cf
|
|
gptkbp:uses
|
gptkb:Supernova
|
|
gptkbp:was_a_response_to
|
used in neutron capture experiments
|
|
gptkbp:bfsParent
|
gptkb:californium
|
|
gptkbp:bfsLayer
|
6
|