|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
colorless
|
|
gptkbp:atomicNumber
|
86
|
|
gptkbp:atomicRadius
|
120 pm
|
|
gptkbp:atomicWeight
|
222
|
|
gptkbp:block
|
p-block
|
|
gptkbp:boilingPoint
|
211.5 K
|
|
gptkbp:CASNumber
|
10043-92-2
|
|
gptkbp:category
|
noble gases
environmental hazard
radioactive gases
|
|
gptkbp:crystalSystem
|
cubic
|
|
gptkbp:decaysTo
|
gptkb:polonium-218
|
|
gptkbp:density
|
9.73 g/L (at 0°C, 101.3 kPa)
|
|
gptkbp:discoveredBy
|
gptkb:Friedrich_Ernst_Dorn
|
|
gptkbp:discoveredIn
|
1900
|
|
gptkbp:electronConfiguration
|
[Xe] 4f14 5d10 6s2 6p6
|
|
gptkbp:electronegativity
|
2.2 (Pauling scale)
|
|
gptkbp:event
|
naturally in soil and rock
|
|
gptkbp:firstIsolatedFrom
|
gptkb:Friedrich_Ernst_Dorn
|
|
gptkbp:foundIn
|
uranium ores
|
|
gptkbp:halfLife
|
3.8 days (Rn-222)
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Radon
|
|
gptkbp:inhalationRisk
|
high
|
|
gptkbp:isotopes
|
gptkb:Rn-219
gptkb:Rn-220
gptkb:Rn-222
|
|
gptkbp:meltingPoint
|
202 K
|
|
gptkbp:namedAfter
|
gptkb:radium
|
|
gptkbp:namedFor
|
gptkb:William_Ramsay
|
|
gptkbp:naturalOccurrence
|
decay of uranium and thorium
|
|
gptkbp:oxidationStates
|
+2
0
|
|
gptkbp:parent
|
gptkb:radium
|
|
gptkbp:period
|
6
|
|
gptkbp:previousName
|
gptkb:niton
gptkb:radium_emanation
|
|
gptkbp:radioactive
|
true
|
|
gptkbp:relatedGroup
|
noble gas
|
|
gptkbp:riskFactor
|
carcinogenic
lung cancer risk
|
|
gptkbp:solubility
|
relatively high for a noble gas
|
|
gptkbp:standardState
|
gptkb:gasoline
|
|
gptkbp:stateAtRoomTemperature
|
gptkb:gasoline
|
|
gptkbp:symbol
|
gptkb:Rn
|
|
gptkbp:UNNumber
|
gptkb:UN_1972
|
|
gptkbp:uses
|
scientific research
radiotherapy
|
|
gptkbp:bfsParent
|
gptkb:The_Noble_Gases
|
|
gptkbp:bfsLayer
|
5
|