Template:Infobox uranium

Uranium, ₉₂U
Uranium
Pronunciation	/j[unsupported input]eɪniəm/ (yoor-AY-nee-əm)
Appearance	sillery gray metallic; corrodes tae a spallin black oxide coat in air
Standard atomic weight Ar, std(U)	238.02891(3)
Uranium in the periodic cairt
	protactinium ← uranium → neptunium
Atomic nummer (Z)	92
Group	group n/a
Period	period 7
Block	f-block
Element category	Actinide
Electron confeeguration	[Rn] 5f3 6d1 7s2
Electrons per shell	2, 8, 18, 32, 21, 9, 2
Pheesical properties
Phase at STP	solid
Meltin pynt	1405.3 K (1132.2 °C, 2070 °F)
Bylin pynt	4404 K (4131 °C, 7468 °F)
Density (near r.t.)	19.1 g/cm3
when liquid (at m.p.)	17.3 g/cm3
Heat o fusion	9.14 kJ/mol
Heat o vapourisation	417.1 kJ/mol
Molar heat capacity	27.665 J/(mol·K)
Atomic properties
Oxidation states	+1, +2, +3, +4, +5, +6 waikly basic
Electronegativity	Pauling scale: 1.38
Ionisation energies	1st: 597.6 kJ/mol ; 2nd: 1420 kJ/mol ; ;
Atomic radius	empirical: 156 pm
Covalent radius	196±7 pm
Van der Waals radius	186 pm
	Colour lines in a spectral rangeSpectral lines o uranium
Ither properties
Naitural occurrence	primordial
Creestal structur	orthorhombic
Speed o soond thin rod	3155 m/s (at 20 °C)
Thermal expansion	13.9 µm/(m·K) (at 25 °C)
Thermal conductivity	27.5 W/(m·K)
Electrical resistivity	0.280 µΩ·m (at 0 °C)
Magnetic orderin	paramagnetic
Young's modulus	208 GPa
Shear modulus	111 GPa
Bulk modulus	100 GPa
Poisson ratio	0.23
Vickers haurdness	1960–2500 MPa
Brinell haurdness	2350–3850 MPa
CAS Nummer	7440-61-1
History
Namin	efter planet Uranus, itsel named efter Greek god o the sky Uranus
Diskivery	Martin Heinrich Klaproth (1789)
First isolation	Eugène-Melchior Péligot (1841)
Main isotopes o uranium
α	228Th
α	229Th
α	230Th
α	231Th
SF	–
β−β−	238Pu
	view; talk; edit; \| references

style="text-align:left"\| data m.p. cat v
	in	calc from C	diff	report	ref
C	1132.2	—	—
K	1405.3	1405.3	0
F	2070	2070.0	0
WD
input	C: 1132.2, K: 1405.3, F: 2070
comment

style="text-align:left"\| data b.p. cat v
	in	calc from C	diff	report	ref
C	4131	—	—
K	4404	4404	0
F	7468	7468	0
WD
input	C: 4131, K: 4404, F: 7468
comment

PTUranium

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References

↑ 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.
↑ 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.
↑ Morss, L.R.; Edelstein, N.M.; Fuger, J., eds. (2006). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Netherlands: Springer. ISBN 9048131464.

[CIAAW2013-1] 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.

[3] Morss, L.R.; Edelstein, N.M.; Fuger, J., eds. (2006). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Netherlands: Springer. ISBN 9048131464.

[1]

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