Statements (53)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:chemical_compound
|
| gptkbp:appearance |
silvery-white metal
|
| gptkbp:boilingPoint |
1794 °C
|
| gptkbp:CASNumber |
7440-19-9
|
| gptkbp:category |
rare earth element
|
| gptkbp:crystalSystem |
rhombohedral
|
| gptkbp:density |
7.52 g/cm³
|
| gptkbp:discoveredBy |
gptkb:Lecoq_de_Boisbaudran
|
| gptkbp:discoveredIn |
1879
|
| gptkbp:electronegativity |
1.17 (Pauling scale)
|
| gptkbp:foundIn |
gptkb:bastnäsite
monazite |
| gptkbp:hasAtomicNumber |
62
|
| gptkbp:hasElementSymbol |
gptkb:Sm
|
| gptkbp:hasStandardAtomicWeight |
150.36
|
| https://www.w3.org/2000/01/rdf-schema#label |
Natural samarium
|
| gptkbp:includesGroup |
lanthanide
|
| gptkbp:isotopeAbundance |
samarium-144: 3.1%
samarium-147: 15.0% samarium-148: 11.2% samarium-149: 13.8% samarium-150: 7.4% samarium-152: 26.75% samarium-154: 22.75% |
| gptkbp:isotopeComposition |
contains samarium-144
contains samarium-147 contains samarium-148 contains samarium-149 contains samarium-150 contains samarium-152 contains samarium-154 |
| gptkbp:isotopesStable |
samarium-144
samarium-149 samarium-150 samarium-152 samarium-154 |
| gptkbp:magneticOrdering |
paramagnetic
|
| gptkbp:meltingPoint |
1072 °C
|
| gptkbp:oxidationStates |
+2
+3 |
| gptkbp:radioactive |
samarium-147
samarium-148 samarium-149 samarium-150 samarium-152 samarium-154 |
| gptkbp:setInPeriod |
period 6
|
| gptkbp:uses |
cathedral
electronics permanent magnets neutron absorber |
| gptkbp:bfsParent |
gptkb:Samarium-152
|
| gptkbp:bfsLayer |
8
|