mendelevium

E47604

Mendelevium is a synthetic, radioactive actinide element with atomic number 101, named after Dmitri Mendeleev and produced only in particle accelerators.

AI illustration

How this image was made

AI-generated illustration of mendelevium

This AI-generated illustration was produced by black-forest-labs/FLUX.2-dev (1024x1024) from a prompt written by openai/gpt-oss-120b from the entity's label + description.

Prompt

Generate an image of a mendelevium (Mendelevium is a synthetic, radioactive actinide element with atomic number 101, named after Dmitri Mendeleev and produced only in particle accelerators.)

All labels observed (2)

Label Occurrences
mendelevium canonical 6
element mendelevium 1

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf actinide ⓘ
chemical element ⓘ
radioactive element ⓘ
synthetic element ⓘ
atomicNumber 101 ⓘ
atomicRadiusPm around 173 ⓘ
belongsToSeries transuranium elements ⓘ
block f-block ⓘ
CASNumber 7440-11-1 ⓘ
chemicalSymbol Md ⓘ
discoveredAt Lawrence Berkeley National Laboratory ⓘ
discoveredInCountry United States ⓘ
discoverer Albert Ghiorso ⓘ
Bernard G. Harvey ⓘ
Glenn T. Seaborg ⓘ
Gregory R. Choppin ⓘ
Stanley G. Thompson ⓘ
discoveryYear 1955 ⓘ
electronConfiguration [Rn] 5f13 7s2 ⓘ
elementCategory actinide ⓘ
firstSynthesisReactionType alpha-particle bombardment ⓘ
firstSynthesisTarget einsteinium-253 ⓘ
group actinide series ⓘ
hasNoStableIsotopes yes ⓘ
isotopesCountKnown more than 15 isotopes ⓘ
isTransuranic yes ⓘ
IUPACName mendelevium ⓘ
meltingPointCelsius about 827 ⓘ
meltingPointKelvin 1100 ⓘ
mostStableIsotope mendelevium-258 ⓘ
mostStableIsotopeHalfLife about 51.5 days ⓘ
namedAfter Dmitri Mendeleev ⓘ
namedForContribution periodic table development ⓘ
occursNaturally no ⓘ
oxidationState +2 ⓘ
+3 ⓘ
period 7 ⓘ
phaseAtSTP solid ⓘ
positionInPeriodicTable between fermium and nobelium ⓘ
primaryOxidationStateInSolution +3 ⓘ
producedBy particle accelerators ⓘ
radioactive yes ⓘ
secondaryOxidationStateInSolution +2 ⓘ
standardAtomicWeight [258] ⓘ
symbolOrigin derived from name mendelevium ⓘ
syntheticProductionMethod heavy-ion bombardment ⓘ
Z 101 ⓘ

How these facts were elicited

Referenced by (7)

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

Glenn T. Seaborg → discovered → mendelevium ⓘ
mendelevium → IUPACName → mendelevium ⓘ
Dmitri Mendeleev → hasHonorificEponym → element mendelevium ⓘ
linked to: mendelevium
Stanley G. Thompson → coDiscovered → mendelevium ⓘ
Bernard G. Harvey → co-discovered → mendelevium ⓘ