mendelevium

E47604
actinide chemical element radioactive element synthetic element

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

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All labels observed (2)

Label Occurrences
mendelevium canonical 4
element mendelevium 1

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 of America ⓘ
surface form: 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 self-link ⓘ
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 ⓘ

Referenced by (5)

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

Lawrence Berkeley National Laboratory → discovered → mendelevium ⓘ
Glenn T. Seaborg → discovered → mendelevium ⓘ
mendelevium → IUPACName → mendelevium self-link ⓘ
Dmitri Mendeleev → hasHonorificEponym → mendelevium ⓘ
this entity surface form: element mendelevium
actinide series → containsPrimarilySyntheticElements → mendelevium ⓘ