lawrencium

E48928

Lawrencium is a synthetic, highly radioactive actinide element with atomic number 103, used primarily for scientific research in nuclear chemistry and physics.

Jump to: Surface forms Statements Referenced by

Observed surface forms (1)

Surface form Occurrences
element lawrencium 1

Statements (48)

Predicate Object
instanceOf actinide
chemical element
radioactive element
synthetic element
belongsToBlock f-block
belongsToPeriod period 7
belongsToSeries actinide series
discoveredAt Lawrence Berkeley National Laboratory
discoveredBy Albert Ghiorso
Almon E. Larsh NERFINISHED
Robert M. Latimer
Torbjørn Sikkeland
discoveredInYear 1961
hasAppearance unknown (presumed metallic)
hasAtomicNumber 103
hasAtomicRadius about 160 pm (predicted)
hasCASNumber 22537-19-5
hasDensity about 14.4 g/cm3 (predicted)
hasElectronConfiguration [Rn] 5f14 7s2 7p1
hasGroup group 3 (often assigned)
hasIsotopesCount about 14 known isotopes
hasIUPACName lawrencium self-link
hasMeltingPoint about 1900 K (estimated)
hasMostStableIsotope lawrencium-266
hasMostStableIsotopeHalfLife about 11 hours
hasNameOrigin Ernest O. Lawrence
hasNeutronCountInMostStableIsotope 163
hasNuclearCharge +103
hasOxidationState +1 (predicted)
+3
hasProtonCount 103
hasRadioactiveDecayMode alpha decay
spontaneous fission
hasStandardAtomicWeight [262]
hasSymbol Lr
isElementNumber 103 in the periodic table
isHeaviestActinide one of the heaviest actinides
isHighlyRadioactive true
isNaturallyOccurring false
isPostTransitionMetalLike true (predicted)
isProducedBy bombardment of californium with boron ions
particle accelerator experiments
isSolidAtSTP predicted true
isSynthetic true
namedAfter Ernest O. Lawrence
usedFor scientific research
usedIn nuclear chemistry
nuclear physics

Referenced by (4)

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

lawrencium hasIUPACName lawrencium self-link
Ernest O. Lawrence namesakeOf lawrencium
this entity surface form: element lawrencium