Fermium

E88968

Fermium is a synthetic, highly radioactive actinide metal with atomic number 100, first identified in the debris of the first hydrogen bomb test and named in honor of physicist Enrico Fermi.

All labels observed (2)

Label Occurrences
Fermium canonical 1
fermium 1

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf actinide ⓘ
chemical element ⓘ
radioactive metal ⓘ
synthetic element ⓘ
belongsToBlock f-block ⓘ
belongsToPeriod period 7 ⓘ
belongsToSeries actinide series ⓘ
hasAtomicNumber 100 ⓘ
hasAtomicRadiusEstimate approximately 2.45 Å (metallic) ⓘ
hasCASNumber 7440-72-4 ⓘ
hasCommonOxidationState +3 ⓘ
hasDiscoveryLocation Enewetak Atoll ⓘ
surface form: Enewetak Atoll (test site debris source)
hasElectronConfiguration [Rn] 5f12 7s2 ⓘ
hasIsotope fermium-252 ⓘ
fermium-253 ⓘ
fermium-255 ⓘ
fermium-257 ⓘ
hasMostStableIsotope fermium-257 ⓘ
hasMostStableIsotopeHalfLife about 100.5 days ⓘ
hasNameOrigin Enrico Fermi ⓘ
hasNuclearCharge +100 ⓘ
hasOxidationState +2 ⓘ
+3 ⓘ
hasPhaseAtSTP solid ⓘ
hasPositionInPeriodicTable between einsteinium and mendelevium ⓘ
hasPrimaryUse scientific research ⓘ
hasProtons 100 ⓘ
hasStandardAtomicWeight [257] ⓘ
hasSymbol Fm ⓘ
isHeavierThan einsteinium ⓘ
isHighlyRadioactive true ⓘ
isLighterThan mendelevium ⓘ
isMetal true ⓘ
isNaturallyOccurring false ⓘ
isPostUraniumElement true ⓘ
isProducedBy multiple neutron capture in uranium or plutonium in nuclear explosions ⓘ
neutron capture in heavy actinides ⓘ
isProducedIn nuclear reactors ⓘ
thermonuclear explosions ⓘ
isSynthetic true ⓘ
isTransuraniumElement true ⓘ
namedAfter Enrico Fermi ⓘ
wasDiscoveredAt Lawrence Berkeley National Laboratory ⓘ
wasDiscoveredBy Albert Ghiorso ⓘ
University of California, Berkeley ⓘ
surface form: Berkeley team at University of California
wasDiscoveredDuring first hydrogen bomb test analysis ⓘ
wasDiscoveredIn 1952 ⓘ
wasFirstIdentifiedIn Ivy Mike thermonuclear test debris ⓘ

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Enrico Fermi → hasEponym → Fermium ⓘ
Glenn T. Seaborg → discovered → Fermium ⓘ
this entity surface form: fermium