|
gptkbp:instance_of
|
gptkb:isotope
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:Plutonium
|
|
gptkbp:application
|
neutron sources
research in nuclear science
production of plutonium
|
|
gptkbp:color
|
silvery metallic
|
|
gptkbp:composed_of
|
from plutonium
from uranium
from neutron bombardment
|
|
gptkbp:discovered_by
|
gptkb:Glenn_T._Seaborg
|
|
gptkbp:dissolved
|
insoluble in water
soluble in acids
|
|
gptkbp:electronegativity
|
1.3 (Pauling scale)
|
|
gptkbp:financial_performance
|
gptkb:theorem
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Neptunium-237
|
|
gptkbp:is_a_fusion_of
|
gptkb:theorem
|
|
gptkbp:is_a_moment_of
|
-1.1 nm
|
|
gptkbp:isotopes
|
gptkb:Np-237
gptkb:theorem
93
high
0.1 barns
|
|
gptkbp:lifespan
|
2.144 million years
|
|
gptkbp:melting_point
|
4131 ° C
913 ° C
|
|
gptkbp:members
|
actinides
|
|
gptkbp:mode
|
alpha decay
|
|
gptkbp:occurs_in
|
trace amounts in nature
|
|
gptkbp:parent
|
gptkb:Uranium-233
|
|
gptkbp:population
|
20.45 g/cm³
|
|
gptkbp:produced_by
|
neutron capture in Uranium
|
|
gptkbp:roll_rate
|
5/2
|
|
gptkbp:safety_features
|
environmental concerns
radioactive toxicity
|
|
gptkbp:social_structure
|
+6
+5
+3
+4
|
|
gptkbp:storage
|
requires shielding
must be stored in secure facilities
|
|
gptkbp:symbol
|
Np
|
|
gptkbp:uses
|
gptkb:weapon
nuclear reactors
|
|
gptkbp:was_a_response_to
|
reacts with halogens
reacts with acids
forms oxides
reacts with oxygen
|
|
gptkbp:year_created
|
gptkb:1940
|