Statements (34)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:chemical_compound
|
| gptkbp:appearance |
silvery white
|
| gptkbp:atomicNumber |
88
|
| gptkbp:boilingPointCelsius |
1737
|
| gptkbp:CASNumber |
7440-14-4
|
| gptkbp:category |
metal
radioactive element alkaline earth metal |
| gptkbp:crystalSystem |
body-centered cubic
|
| gptkbp:density |
5.5 g/cm³
|
| gptkbp:discoveredBy |
gptkb:Marie_Curie
gptkb:Pierre_Curie |
| gptkbp:discoveredIn |
1898
|
| gptkbp:electronConfiguration |
[Rn] 7s2
|
| gptkbp:electronegativity |
0.9 (Pauling scale)
|
| gptkbp:foundIn |
uranium ores
|
| https://www.w3.org/2000/01/rdf-schema#label |
radium
|
| gptkbp:isomerOf |
gptkb:radium-223
gptkb:radium-224 gptkb:radium-226 gptkb:radium-228 |
| gptkbp:meltingPoint |
700
|
| gptkbp:namedAfter |
radius (Latin for ray)
|
| gptkbp:oxidationStates |
+2
|
| gptkbp:period |
7
|
| gptkbp:radioactive |
true
|
| gptkbp:relatedGroup |
alkaline earth metal
|
| gptkbp:riskFactor |
radioactive poisoning
|
| gptkbp:symbol |
gptkb:Ra
|
| gptkbp:uses |
gptkb:cancer
luminous paints (historically) |
| gptkbp:bfsParent |
gptkb:Pierre_Curie
gptkb:Ore_Mountains |
| gptkbp:bfsLayer |
4
|