|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
silvery white
|
|
gptkbp:atomicNumber
|
56
|
|
gptkbp:atomicWeight
|
137.327
|
|
gptkbp:block
|
s-block
|
|
gptkbp:boilingPoint
|
1897 °C
|
|
gptkbp:CASNumber
|
7440-39-3
|
|
gptkbp:category
|
gptkb:alkaline_earth_metals
chemical elements
|
|
gptkbp:crystalSystem
|
body-centered cubic
|
|
gptkbp:density
|
3.51 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Carl_Wilhelm_Scheele
|
|
gptkbp:discoveredIn
|
1772
|
|
gptkbp:electronConfiguration
|
[Xe] 6s2
|
|
gptkbp:electronegativity
|
0.89
|
|
gptkbp:foundIn
|
gptkb:Sweden
gptkb:witherite
barite
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Barium
|
|
gptkbp:isotopes
|
gptkb:Barium-130
gptkb:Barium-132
gptkb:Barium-134
gptkb:Barium-135
gptkb:Barium-136
gptkb:Barium-137
gptkb:Barium-138
|
|
gptkbp:meltingPoint
|
727 °C
|
|
gptkbp:namedAfter
|
gptkb:baryte
|
|
gptkbp:oxidationStates
|
+2
|
|
gptkbp:period
|
6
|
|
gptkbp:phaseAtSTP
|
gptkb:stone
|
|
gptkbp:radioactive
|
no (all stable isotopes except trace amounts)
|
|
gptkbp:relatedGroup
|
alkaline earth metal
|
|
gptkbp:symbol
|
gptkb:Ba
|
|
gptkbp:toxicity
|
yes
|
|
gptkbp:type
|
gptkb:water
oxygen
acids
|
|
gptkbp:uses
|
gptkb:fireworks
vacuum tubes
drilling fluids
contrast agent in X-ray imaging
|
|
gptkbp:bfsParent
|
gptkb:Peucetians
gptkb:Barium_star
gptkb:Ba
|
|
gptkbp:bfsLayer
|
6
|