Template:Infobox lawrencium

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Lawrencium, 103Lr
Lawrencium
PronunciationListeni/ləˈrɛnsiəm/ (lə-REN-see-əm)
Appearancesilvery (predictit)[1]
Mass number[266]
Lawrencium in the periodic cairt
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 Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) 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 Gowd Mercur (element) Thallium Leid (element) 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 Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Lu

Lr

(Upp)
nobeliumlawrenciumrutherfordium
Atomic nummer (Z)103
Groupgroup n/a
Periodperiod 7
Blockd-block
Element category  Actinide
Electron confeeguration[Rn] 5f14 7s2 7p1
Electrons per shell2, 8, 18, 32, 32, 8, 3
Pheesical properties
Phase at STPsolit (predictit)
Meltin pynt1900 K ​(1627 °C, ​2961 °F) (predictit)
Atomic properties
Oxidation states+3
Ionisation energies
  • 1st: 478.6 kJ/mol[2]
  • 2nd: 1428.0 kJ/mol (predictit)
  • 3rd: 2219.1 kJ/mol (predictit)
Ither properties
Naitural occurrencesynthetic
Creestal structurhexagonal close-packed (hcp)
Hexagonal close-packed creestal structur for lawrencium

(predicted)[3]
CAS Nummer22537-19-5
History
Naminafter Ernest Lawrence
DiskiveryLawrence Berkeley Naitional Laboratory an Jynt Institute for Nuclear Research (1961–1971)
Main isotopes o lawrencium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
266Lr syn 11 h SF
262Lr syn 3.6 h ε 262No
261Lr syn 44 min SF/ε?
260Lr syn 2.7 min α 256Md
259Lr syn 6.2 s 78% α 255Md
22% SF
256Lr syn 27 s α 252Md
255Lr syn 21.5 s α 251Md
254Lr syn 13 s 78% α 250Md
22% ε 254No
| references
style="text-align:left"|
in calc from C diff report ref
C 1627
K 1900 1900 0
F 2961 2961 0
WD Edit this at Wikidata
input C: 1627, K: 1900, F: 2961
comment (predictit)

Check temperaturs Lr: na inpit for C, K, F.

References

Thir references will appear in the airticle, but this list appears anerly on this page.
  1. Emsley, John (2011). Nature's Building Blocks: An A-Z Guide to the Elements (New ed.). New York, NY: Oxford University Press. p. 278–9. ISBN 978-0-19-960563-7.
  2. http://cen.acs.org/articles/93/i15/Lawrencium-Ionization-Energy-Measured.html?cq_ck=1428631698138
  3. Östlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals". Physical Review B. 84 (11). Bibcode:2011PhRvB..84k3104O. doi:10.1103/PhysRevB.84.113104.
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