|
gptkbp:instance_of
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
gptkb:unknown
|
|
gptkbp:average_temperature
|
gptkb:solid
|
|
gptkbp:block
|
d-block
d
|
|
gptkbp:casnumber
|
54037-13-5
|
|
gptkbp:category
|
transition metal
|
|
gptkbp:chemical_formula
|
noble metals
|
|
gptkbp:color
|
gptkb:unknown
|
|
gptkbp:composed_by
|
heavy ion collisions
|
|
gptkbp:composed_of
|
gptkb:unknown
|
|
gptkbp:contains_allergens
|
none known
|
|
gptkbp:cooling_system
|
gptkb:unknown
|
|
gptkbp:discovered_by
|
gptkb:GSI_Helmholtz_Centre_for_Heavy_Ion_Research
|
|
gptkbp:discovery
|
gptkb:Darmstadt
GSI team
|
|
gptkbp:discovery_year
|
gptkb:1994
|
|
gptkbp:electronegativity
|
gptkb:unknown
[ Rn] 5f14 6d8 7s2
|
|
gptkbp:element
|
osmium
ruthenium
iridium
|
|
gptkbp:financial_stability
|
unstable
|
|
gptkbp:first_described_by
|
gptkb:1994
|
|
gptkbp:first_synthesized_by
|
gptkb:Peter_Armbruster
|
|
gptkbp:has_field
|
gptkb:unknown
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Darmstadtium
|
|
gptkbp:international_relations
|
gptkb:unknown
|
|
gptkbp:is_set_in
|
gptkb:platinum
gptkb:gold
iridium
|
|
gptkbp:isotopes
|
gptkb:110
Ds-281
|
|
gptkbp:lifespan
|
approximately 12.7 hours
approximately 12.7 seconds
|
|
gptkbp:melting_point
|
gptkb:unknown
|
|
gptkbp:members
|
gptkb:10
|
|
gptkbp:mode
|
gptkb:roentgenium
alpha decay
|
|
gptkbp:named_after
|
gptkb:Darmstadt
gptkb:Darmstadt,_Germany
|
|
gptkbp:orbital_altitude
|
7th period
|
|
gptkbp:oxidation_states
|
+8, +6, +4, +2
|
|
gptkbp:period
|
gptkb:7
|
|
gptkbp:population_density
|
gptkb:unknown
approximately 34.8 g/cm³
|
|
gptkbp:previous_name
|
gptkb:darmstadtium
|
|
gptkbp:symbol
|
Ds
|
|
gptkbp:uses
|
research purposes
|
|
gptkbp:was_a_response_to
|
theoretical predictions only
|
|
gptkbp:bfsParent
|
gptkb:Darmstadt
|
|
gptkbp:bfsLayer
|
4
|