|
gptkbp:instance_of
|
gptkb:isotope
|
|
gptkbp:application
|
used in anti-static devices
|
|
gptkbp:color
|
silvery-gray
|
|
gptkbp:composed_by
|
neutron capture in bismuth
|
|
gptkbp:composed_of
|
metallic
|
|
gptkbp:conducts_research_on
|
in particle physics
|
|
gptkbp:discovered_by
|
gptkb:Marie_Curie
|
|
gptkbp:discovery_year
|
gptkb:1940
|
|
gptkbp:electrons
|
84
|
|
gptkbp:engine
|
in some types of smoke detectors
|
|
gptkbp:environmental_impact
|
can contaminate soil and water
|
|
gptkbp:financial_stability
|
false
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Polonium-209
|
|
gptkbp:is_analyzed_in
|
in studies of heavy elements
|
|
gptkbp:is_considered
|
a hazardous material
|
|
gptkbp:is_found_in
|
nuclear waste
|
|
gptkbp:is_found_in_nature
|
in very small amounts
|
|
gptkbp:is_monitored_by
|
nuclear regulatory agencies
|
|
gptkbp:is_part_of
|
nuclear physics studies
actinide series
|
|
gptkbp:is_part_of_environmental_studies
|
in studies of radioactive contamination
|
|
gptkbp:is_part_of_nuclear_reactions
|
in nuclear reactors
|
|
gptkbp:is_part_of_nuclear_waste
|
in spent nuclear fuel
|
|
gptkbp:is_studied_for
|
its radioactive properties
|
|
gptkbp:is_used_for
|
radiation sources
|
|
gptkbp:is_used_in
|
research applications
|
|
gptkbp:is_used_in_medicine
|
in targeted alpha-particle therapy
|
|
gptkbp:is_used_in_space_applications
|
in radioisotope thermoelectric generators
|
|
gptkbp:isotopes
|
gptkb:Po-209
gptkb:Polonium
gptkb:true
125
84
|
|
gptkbp:lifespan
|
103 years
|
|
gptkbp:mass
|
209
|
|
gptkbp:melting_point
|
254 ° C
962 ° C
|
|
gptkbp:mode
|
Lead-205
|
|
gptkbp:occurs_in
|
trace amounts in uranium ores
|
|
gptkbp:parent
|
gptkb:Polonium-210
|
|
gptkbp:population_density
|
9.2 g/cm³
|
|
gptkbp:produced_by
|
neutron bombardment
|
|
gptkbp:radioactive_decay_mode
|
alpha particle emission
|
|
gptkbp:rarity
|
in nature.
|
|
gptkbp:safety
|
requires careful handling
|
|
gptkbp:symbol
|
gptkb:Po
|
|
gptkbp:threats
|
due to its radioactivity
|
|
gptkbp:toxicity
|
highly toxic
|
|
gptkbp:type_of_decay
|
alpha decay
|
|
gptkbp:uses
|
used in some types of nuclear batteries
|
|
gptkbp:was_a_response_to
|
reacts with oxygen
|
|
gptkbp:bfsParent
|
gptkb:Polonium-210
|
|
gptkbp:bfsLayer
|
8
|