Template:Infobox uranium

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

Uranium, 92U
Two hands in brown gloves holding a blotched gray disk with a number 2068 hand-written on it
Uranium
Pronunciation/jʊəˈrniəm/ (Template:Respell)
Appearancesilvery gray metallic; corrodes to a spalling black oxide coat in air
Standard atomic weight Ar, std(U)Template:Val[1]
Uranium in the periodic table
Template:Periodic table (32 columns, micro) Nd

U

(Uqh)
protactiniumuraniumneptunium
Atomic number (Z)92
Groupgroup n/a
Periodperiod 7
Block  f-block
Electron configuration[Rn] 5f3 6d1 7s2
Electrons per shell2, 8, 18, 32, 21, 9, 2
Physical properties
Phase at STPsolid
Melting point1405.3 K ​(1132.2 °C, ​2070 °F)
Boiling point4404 K ​(4131 °C, ​7468 °F)
Density (near r.t.)19.1 g/cm3
when liquid (at m.p.)17.3 g/cm3
Heat of fusion9.14 kJ/mol
Heat of vaporization417.1 kJ/mol
Molar heat capacity27.665 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2325 2564 2859 3234 3727 4402
Atomic properties
Oxidation states+1, +2, +3,[2] +4, +5, +6 (an amphoteric oxide)
ElectronegativityPauling scale: 1.38
Ionization energies
  • 1st: 597.6 kJ/mol
  • 2nd: 1420 kJ/mol
Atomic radiusempirical: 156 pm
Covalent radius196±7 pm
Van der Waals radius186 pm
Color lines in a spectral range
Spectral lines of uranium
Other properties
Natural occurrenceprimordial
Crystal structureorthorhombic
Orthorhombic crystal structure for uranium
Speed of sound thin rod3155 m/s (at 20 °C)
Thermal expansion13.9 µm/(m·K) (at 25 °C)
Thermal conductivity27.5 W/(m·K)
Electrical resistivity0.280 µΩ·m (at 0 °C)
Magnetic orderingparamagnetic
Young's modulus208 GPa
Shear modulus111 GPa
Bulk modulus100 GPa
Poisson ratio0.23
Vickers hardness1960–2500 MPa
Brinell hardness2350–3850 MPa
CAS Number7440-61-1
History
Namingafter planet Uranus, itself named after Greek god of the sky Uranus
DiscoveryMartin Heinrich Klaproth (1789)
First isolationEugène-Melchior Péligot (1841)
Main isotopes of uranium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
232U syn 68.9 y SF
α 228Th
233U trace 1.592×105 y SF
α 229Th
234U 0.005% 2.455×105 y SF
α 230Th
235U 0.720% 7.04×108 y SF
α 231Th
236U trace 2.342×107 y SF
α 232Th
238U 99.274% 4.468×109 y α 234Th
SF
ββ 238Pu
Category Category: Uranium
| references

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

data m.p. cat
in calc from C diff report ref
C 1132.2
K 1405.3 1405.3 0
F 2070 2070.0 0 Template:Subpage other
max precision 1
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 1132.2, K: 1405.3, F: 2070
comment
data b.p. cat
in calc from C diff report ref
C 4131
K 4404 4404 0
F 7468 7468 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 4131, K: 4404, F: 7468
comment
Pa ←

i'box Pa

iso
92
U (E)
→ Np

i'box Np

  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. Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.
  2. Morss, L.R.; Edelstein, N.M.; Fuger, J., eds. (2006). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Netherlands: Springer. ISBN 978-9048131464.

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