|
gptkbp:instance_of
|
gptkb:chemical_compound
gptkb:comic_book
|
|
gptkbp:appearance
|
metallic
|
|
gptkbp:category
|
actinide
|
|
gptkbp:color
|
silvery-white
|
|
gptkbp:cooling_system
|
12.5 W/(m· K)
|
|
gptkbp:created_by
|
gptkb:unknown
|
|
gptkbp:diplomatic_relations
|
used in neutron sources
|
|
gptkbp:discovered_by
|
gptkb:Friedrich_Oskar_Giesel
gptkb:government_agency
|
|
gptkbp:dissolved
|
soluble in acids
|
|
gptkbp:electronegativity
|
1.1 (Pauling scale)
|
|
gptkbp:first_appearance
|
gptkb:unknown
|
|
gptkbp:genre
|
gptkb:superhero
|
|
gptkbp:historical_significance
|
first non-uranium radioactive element isolated
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Actinium
|
|
gptkbp:isotopes
|
gptkb:Ac-226
gptkb:Ac-227
gptkb:theorem
89
Ac-228
|
|
gptkbp:lifespan
|
21.77 years (Ac-227)
|
|
gptkbp:melting_point
|
1050 ° C
boiling point not well defined
|
|
gptkbp:mode
|
alpha decay
thorium-227
|
|
gptkbp:notable_conductors
|
conductive
|
|
gptkbp:occurs_in
|
found in trace amounts in uranium and thorium ores
|
|
gptkbp:order
|
paramagnetic
|
|
gptkbp:origin
|
from the Greek word 'aktinos' meaning 'ray'
|
|
gptkbp:population
|
10.07 g/cm³
|
|
gptkbp:power_output
|
5.17 e V
|
|
gptkbp:published_by
|
gptkb:unknown
|
|
gptkbp:safety_features
|
radioactive hazard
|
|
gptkbp:set_in
|
gptkb:tennessine
gptkb:californium
gptkb:curium
gptkb:einsteinium
gptkb:darmstadtium
gptkb:oganesson
gptkb:berkelium
gptkb:fermium
gptkb:mendelevium
gptkb:neptunium
gptkb:copernicium
gptkb:flerovium
gptkb:livermorium
gptkb:moscovium
gptkb:nihonium
gptkb:roentgenium
uranium
plutonium
thorium
seaborgium
dubnium
hassium
lawrencium
meitnerium
nobelium
rutherfordium
bohrium
|
|
gptkbp:social_structure
|
+3
face-centered cubic
|
|
gptkbp:species
|
very rare
0.0007 mg/kg
|
|
gptkbp:symbol
|
Ac
|
|
gptkbp:uses
|
used in radiation therapy
|
|
gptkbp:was_a_response_to
|
similar to lanthanides
|
|
gptkbp:water_management
|
requires special handling due to radioactivity
|
|
gptkbp:water_quality
|
not detectable
|
|
gptkbp:year_created
|
1899
|
|
gptkbp:bfsParent
|
gptkb:Periodic_Table_of_Elements
|
|
gptkbp:bfsLayer
|
6
|