Template:Infobox lawrencium

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[[Category:Template:Pagetype with short description]]

Lawrencium, 103Lr
Lawrencium
Pronunciation/ləˈrɛnsiəm/ (About this soundlisten) (Template:Respell)
Appearancesilvery (predicted)[1]
Mass number[266]
Lawrencium in the periodic table
Template:Periodic table (32 columns, micro) Lu

Lr

(Ups)
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 ​(1627 °C, ​2961 °F) (predicted)
Density (near r.t.)~15.6–16.6 g/cm3 (predicted)[2][3]
Atomic properties
Oxidation states+3
ElectronegativityPauling scale: 1.3 (predicted)[4]
Ionization energies
  • 1st: 478.6 kJ/mol[5]
  • 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)[6]
CAS Number22537-19-5
History
Namingafter Ernest Lawrence
DiscoveryLawrence Berkeley National Laboratory and Joint Institute for Nuclear Research (1961–1971)
Main isotopes of lawrencium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
254Lr syn 13 s 78% α 250Md
22% ε 254No
255Lr syn 21.5 s α 251Md
256Lr syn 27 s α 252Md
259Lr syn 6.2 s 78% α 255Md
22% SF
260Lr syn 2.7 min α 256Md
261Lr syn 44 min SF/ε?
262Lr syn 3.6 h ε 262No
264Lr syn 3 h[7] SF
266Lr syn 10 h SF
Category Category: Lawrencium
| references

[[Category:Infobox templates|Template:Remove first word]]

data m.p. cat
in calc from C diff report ref
C 1627
K 1900 1900 0
F 2961 2961 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 1627, K: 1900, F: 2961
comment (predicted)

Check temperatures Lr: no input for C, K, F.

No ←

i'box No

iso
103
Lr (E)
→ Rf

i'box Rf

  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03)
See also {{Infobox element/symbol-to--navbox}}

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. 278–9. ISBN 978-0-19-960563-7.
  2. Fournier, Jean-Marc (1976). "Bonding and the electronic structure of the actinide metals". Journal of Physics and Chemistry of Solids. 37 (2): 235–244. Bibcode:1976JPCS...37..235F. doi:10.1016/0022-3697(76)90167-0.
  3. Penneman, R. A.; Mann, J. B. (1976). "'Calculation chemistry' of the superheavy elements; comparison with elements of the 7th period". Proceedings of the Moscow Symposium on the Chemistry of Transuranium Elements: 257–263. doi:10.1016/B978-0-08-020638-7.50053-1.
  4. Brown, Geoffrey (2012). The Inaccessible Earth: An integrated view to its structure and composition. Springer Science & Business Media. p. 88. ISBN 9789401115162.
  5. http://cen.acs.org/articles/93/i15/Lawrencium-Ionization-Energy-Measured.html?cq_ck=1428631698138
  6. 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.
  7. http://flerovlab.jinr.ru/index.php/2020/12/25/she-factory-first-experiment/

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