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Template:Infobox lawrencium

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Lawrencium, 103Lr
Lawrencium
Pronunciation/lɒˈrɛnsiəm/ (lo-REN-see-əm)
Appearancesilvery (predicted)[1]
Mass number[266] (data not decisive)[a]
Lawrencium in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Lu

Lr

nobeliumlawrenciumrutherfordium
Atomic number (Z)103
Groupgroup 3
Periodperiod 7
Block  d-block
Electron configuration[Rn] 5f14 7s2 7p1
Electrons per shell2, 8, 18, 32, 32, 8, 3
Physical properties
Phase at STPsolid (predicted)
Melting point1900 K ​(1600 °C, ​3000 °F) (predicted)
Density (near r.t.)14.4 g/cm3 (predicted)[4]
Atomic properties
Oxidation statescommon: 3
ElectronegativityPauling scale: 1.3 (predicted)[5]
Ionization energies
  • 1st: 479 kJ/mol[6]
  • 2nd: 1428.0 kJ/mol (predicted)
  • 3rd: 2219.1 kJ/mol (predicted)
Other properties
Natural occurrencesynthetic
Crystal structurehexagonal close-packed (hcp)
Hexagonal close-packed crystal structure for lawrencium

(predicted)[7]
CAS Number22537-19-5
History
Namingafter Ernest Lawrence
DiscoveryLawrence Berkeley National Laboratory and Joint Institute for Nuclear Research (1961–1971)
Isotopes of lawrencium
Main isotopes[2] Decay
abun­dance half-life (t1/2) mode pro­duct
256Lr synth 27.9 s α 252Md
β 256No
260Lr synth 3.0 min α 256Md
β 260No
261Lr synth 39 min SF
262Lr synth 4 h β 262No
264Lr synth 4.8 h[3] SF
266Lr synth 11 h SF
 Category: Lawrencium
| references
Lr · Lawrencium
No ←

ibox No

iso
103
Lr  [e]
IB-Lr [e]
IBisos [e]
⊟ Rf

ibox Rf

indexes by PT (page)
child table, as reused in {IB-Lr}
Main isotopes of lawrencium
Main isotopes[2] Decay
abun­dance half-life (t1/2) mode pro­duct
256Lr synth 27.9 s α 252Md
β 256No
260Lr synth 3.0 min α 256Md
β 260No
261Lr synth 39 min SF
262Lr synth 4 h β 262No
264Lr synth 4.8 h[3] SF
266Lr synth 11 h SF
Data sets read by {{Infobox element}}
Name and identifiers
Symbol etymology (11 non-trivial)
Top image (caption, alt)
Pronunciation
Allotropes (overview)
Group (overview)
Period (overview)
Block (overview)
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Isotopes
Standard atomic weight
  most stable isotope
Wikidata
Wikidata *
* Not used in {{Infobox element}} (2023-01-01)
See also {{Index of data sets}} · Cat:data sets (46) · (this table: )
  1. ^ The most stable isotope of lawrencium cannot be determined based on existing data due to uncertainty that arises from the low number of measurements. The half-life of 266Lr corresponding to one standard deviation is, based on existing data, 11 21
    −5
    hours,[2] whereas that of 264Lr is 4.8 2.2
    −1.3
    hours;[3] these measurements have overlapping confidence intervals.

References

  1. ^ Emsley, John (2011). Nature's Building Blocks: An A-Z Guide to the Elements (New ed.). New York, NY: Oxford University Press. p. 278–279. ISBN 978-0-19-960563-7.
  2. ^ a b c Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
  3. ^ a b c Oganessian, Yu. Ts.; Utyonkov, V. K.; Kovrizhnykh, N. D.; et al. (2022). "New isotope 286Mc produced in the 243Am 48Ca reaction". Physical Review C. 106 (064306). doi:10.1103/PhysRevC.106.064306.
  4. ^ Gyanchandani, Jyoti; Sikka, S. K. (10 May 2011). "Physical properties of the 6 d -series elements from density functional theory: Close similarity to lighter transition metals". Physical Review B. 83 (17): 172101. Bibcode:2011PhRvB..83q2101G. doi:10.1103/PhysRevB.83.172101.
  5. ^ Brown, Geoffrey (2012). The Inaccessible Earth: An integrated view to its structure and composition. Springer Science & Business Media. p. 88. ISBN 9789401115162.
  6. ^ Sato, T. K.; Asai, M.; Borschevsky, A.; Stora, T.; Sato, N.; Kaneya, Y.; Tsukada, K.; Düllman, Ch. E.; Eberhardt, K.; Eliav, E.; Ichikawa, S.; Kaldor, U.; Kratz, J. V.; Miyashita, S.; Nagame, Y.; Ooe, K.; Osa, A.; Renisch, D.; Runke, J.; Schädel, M.; Thörle-Pospiech, P.; Toyoshima, A.; Trautmann, N. (9 April 2015). "Measurement of the first ionization potential of lawrencium, element 103" (PDF). Nature. 520 (7546): 209–11. Bibcode:2015Natur.520..209S. doi:10.1038/nature14342. PMID 25855457. S2CID 4384213.
  7. ^ Östlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals". Physical Review B. 84 (11): 113104. Bibcode:2011PhRvB..84k3104O. doi:10.1103/PhysRevB.84.113104.