|
gptkbp:instance_of
|
gptkb:chemical_compound
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:Mendeleev's_Periodic_Table
gptkb:Darmstadtium
|
|
gptkbp:average_temperature
|
gptkb:public_square
|
|
gptkbp:block
|
d-block
|
|
gptkbp:category
|
transition metal
|
|
gptkbp:color
|
gptkb:unknown
|
|
gptkbp:commissioned
|
in a heavy ion accelerator
|
|
gptkbp:composed_of
|
not well studied
|
|
gptkbp:discovered_by
|
gptkb:Gottfried_Münzenberg
gptkb:Peter_Armbruster
gptkb:GSI_Helmholtz_Centre_for_Heavy_Ion_Research
Sigurd Hofmann
fusion of bismuth and nickel
|
|
gptkbp:electronegativity
|
[ Rn] 5f14 6d10 7s2
|
|
gptkbp:elevation
|
7th period
|
|
gptkbp:financial_performance
|
very unstable
|
|
gptkbp:has_achievements
|
high density
high melting point
high boiling point
similar to gold
high atomic mass
|
|
gptkbp:historical_period
|
gptkb:television_series
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
roentgenium
|
|
gptkbp:ingredients
|
transition metals
|
|
gptkbp:is_similar_to
|
gptkb:copernicium
gptkb:roentgenium
ruthenium
iridium
rhodium
|
|
gptkbp:isotopes
|
gptkb:theorem
111
Rg-282
Rg-281
Rg-283
Rg-284
Rg-285
group 11
|
|
gptkbp:lifespan
|
approximately 1.5 ms
|
|
gptkbp:melting_point
|
approximately 5000 K
approximately 3600 K
|
|
gptkbp:members
|
gptkb:11
|
|
gptkbp:named_after
|
gptkb:Wilhelm_Röntgen
|
|
gptkbp:number
|
named after a scientist
|
|
gptkbp:population
|
approximately 28.7 g/cm³
|
|
gptkbp:set_in
|
gptkb:item
|
|
gptkbp:social_structure
|
+1
+3
|
|
gptkbp:symbol
|
Rg
|
|
gptkbp:uses
|
none known
|
|
gptkbp:year_created
|
gptkb:1994
|