einsteinium
E99193
Einsteinium is a synthetic, highly radioactive actinide element named after Albert Einstein and used mainly for scientific research.
Aliases (2)
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
actinide
→
chemical element → synthetic element → |
| appearance |
silvery metal
→
|
| atomicNumber |
99
→
|
| atomicRadiusPm |
186
→
|
| belongsTo |
periodic table of elements
→
|
| belongsToSeries |
transuranium elements
→
|
| block |
f-block
→
|
| CASNumber |
7429-92-7
→
|
| chemicalSymbol |
Es
→
|
| commonOxidationState |
+3
→
|
| crystalStructure |
face-centered cubic
→
|
| density |
8.84 g/cm³
→
|
| discoveredBy |
Albert Ghiorso
→
Berkeley Lab scientists → |
| discoveredIn |
1952
→
|
| discoveryContext |
debris from the first hydrogen bomb test
→
|
| discoveryLocation |
University of California, Berkeley
NERFINISHED
→
|
| electronConfiguration |
[Rn] 5f11 7s2
→
|
| electronegativityPauling |
1.3
→
|
| elementCategory |
actinide
→
|
| firstIonizationEnergyKJPerMol |
619
→
|
| group |
actinides
→
|
| hasNeutronCountInEs-252 |
153
→
|
| hasProtonCount |
99
→
|
| IUPACName |
einsteinium
NERFINISHED
→
|
| meltingPointCelsius |
860
→
|
| meltingPointKelvin |
1133
→
|
| mostStableIsotope |
einsteinium-252
→
|
| mostStableIsotopeHalfLife |
471.7 days
→
|
| namedAfter |
Albert Einstein
→
|
| naturalOccurrence |
does not occur naturally on Earth
→
produced artificially in nuclear reactors → produced in nuclear explosions → |
| otherIsotope |
einsteinium-253
→
einsteinium-254 → |
| oxidationState |
+2
→
+3 → |
| period |
7
→
|
| positionInPeriodicTable |
between californium and fermium
→
|
| radioactiveHazard |
alpha emitter
→
gamma emitter → |
| radioactivity |
highly radioactive
→
|
| standardAtomicWeight |
[252]
→
|
| standardState |
solid
→
|
| thermalNeutronCaptureCrossSection |
high
→
|
| uses |
production of heavier transuranium elements
→
scientific research → |
Referenced by (4)
| Subject (surface form when different) | Predicate |
|---|---|
|
Glenn T. Seaborg
→
|
discovered |
|
Fermium
→
|
isHeavierThan |
|
einsteinium
("einsteinium-252")
→
|
mostStableIsotope |
|
einsteinium
("einsteinium-254")
→
|
otherIsotope |