|
gptkbp:instance_of
|
gptkb:chemical_compound
|
|
gptkbp:bfsLayer
|
6
|
|
gptkbp:bfsParent
|
gptkb:Periodic_Table_of_Elements
|
|
gptkbp:acidity
|
gptkb:unknown
|
|
gptkbp:appearance
|
gptkb:unknown
|
|
gptkbp:atmosphere
|
gptkb:unknown
|
|
gptkbp:average_temperature
|
gptkb:public_square
|
|
gptkbp:block
|
d-block
d
|
|
gptkbp:category
|
transition metal
synthetic element
|
|
gptkbp:color
|
gptkb:unknown
|
|
gptkbp:commissioned
|
gptkb:2004
in a particle accelerator
|
|
gptkbp:composed_of
|
not well studied
fusion of bismuth and calcium
heavy ion bombardment
predicted to be similar to gold
|
|
gptkbp:contains_allergens
|
none known
|
|
gptkbp:cooling_system
|
gptkb:unknown
|
|
gptkbp:discovered_by
|
gptkb:Lawrence_Berkeley_National_Laboratory
gptkb:Darmstadt,_Germany
gptkb:Albert_Ghiorso
gptkb:GSI_Helmholtz_Centre_for_Heavy_Ion_Research
fusion of isotopes
Ghiorso, et al.
first element named after a German scientist
heavy ion reactions
|
|
gptkbp:dissolved
|
gptkb:unknown
|
|
gptkbp:ecological_role
|
none known
|
|
gptkbp:electronegativity
|
gptkb:unknown
[ Rn] 5f14 6d10 7s1
|
|
gptkbp:elevation
|
7th period
|
|
gptkbp:engine
|
none known
|
|
gptkbp:environmental_impact
|
synthetic only
|
|
gptkbp:field
|
gptkb:unknown
|
|
gptkbp:financial_performance
|
unstable
very unstable
|
|
gptkbp:has_achievements
|
similar to gold
|
|
gptkbp:has_gameplay_element
|
gptkb:darmstadtium
gptkb:copernicium
gptkb:roentgenium
hassium
meitnerium
|
|
gptkbp:has_spectral_type
|
gptkb:unknown
|
|
gptkbp:historical_period
|
gptkb:television_series
|
|
gptkbp:historical_significance
|
part of superheavy element research
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Roentgenium
|
|
gptkbp:ingredients
|
not applicable
d-block elements
noble metals
Rg Cl, Rg F, Rg O
|
|
gptkbp:is_vulnerable_to
|
gptkb:unknown
|
|
gptkbp:isotopes
|
gptkb:theorem
111
very low
Rg-280, Rg-281, Rg-282
Rg-282
Rg-279
Rg-280
Rg-281
bismuth-209 and calcium-48
|
|
gptkbp:lifespan
|
approximately 2.1 milliseconds
approximately 1.5 milliseconds
approximately 1.5 ms
approximately 3.6 milliseconds
|
|
gptkbp:melting_point
|
gptkb:unknown
approximately 2100 K
approximately 3600 K
|
|
gptkbp:members
|
gptkb:11
|
|
gptkbp:named_after
|
gptkb:Wilhelm_Röntgen
gptkb:Wilhelm_Conrad_Röntgen
|
|
gptkbp:notable_conductors
|
gptkb:unknown
|
|
gptkbp:number
|
named after a scientist
|
|
gptkbp:population
|
approximately 28.7 g/cm³
|
|
gptkbp:power_output
|
gptkb:unknown
|
|
gptkbp:previous_name
|
gptkb:Roentgenium
|
|
gptkbp:products
|
none known
|
|
gptkbp:roll_rate
|
gptkb:unknown
|
|
gptkbp:safety_features
|
not established
|
|
gptkbp:set_in
|
gptkb:item
|
|
gptkbp:social_structure
|
gptkb:unknown
+1, +3
|
|
gptkbp:symbol
|
Rg
|
|
gptkbp:thermal_design_power
|
gptkb:unknown
|
|
gptkbp:type_of
|
54386-24-2
|
|
gptkbp:uses
|
research purposes
|
|
gptkbp:was_a_response_to
|
gptkb:unknown
not well studied
produced in heavy ion collisions
theoretical predictions only
predicted to be similar to gold
|
|
gptkbp:year_created
|
gptkb:1994
|