Urani (U)

radioactive, metallic element with the atomic number 92

Atomic Number	92
Atomic Weight	238.02891
mass number	238

Group
Period	7
Block	f

protoni	92 p⁺
nyutroni	146 n⁰
elektroni	92 e^-

Physical Property

Atomic Radius	175 pm 283 pm
molar volume	12.5 cm³/mol
Covalent Radius	170 pm 134 pm 118 pm 196 pm
Metallic Radius
ionic radius	102.5 pm 89 pm 95 pm 100 pm 105 pm 117 pm 76 pm 84 pm 45 pm 52 pm 73 pm 81 pm 86 pm 118.9 pm
Crystal Radius	116.5 pm 103 pm 109 pm 114 pm 119 pm 131 pm 90 pm 98 pm 59 pm 66 pm 87 pm 95 pm 100 pm 132.9 pm
Van der Waals radius	230 pm 241 pm 252 pm 339.5 pm
msongamano	19.1 g/cm³ 17,300 kg/m³

Chemical Property

nishati

proton affinity	995.2 kJ/mol
electron affinity
ionization energy	6.19405 eV/particle 11.59 eV/particle 19.8 eV/particle 36.7 eV/particle 46 eV/particle 60 eV/particle 89 eV/particle 101 eV/particle 116 eV/particle 129 eV/particle 158 eV/particle 173 eV/particle 210 eV/particle 227 eV/particle 323 eV/particle 348 eV/particle 375 eV/particle 402 eV/particle 431 eV/particle 458 eV/particle 497 eV/particle 525 eV/particle 557 eV/particle 585 eV/particle 730 eV/particle 770 eV/particle 800 eV/particle 840 eV/particle 930 eV/particle 970 eV/particle 1,070 eV/particle 1,110 eV/particle 1,210 eV/particle 1,290 eV/particle 1,360 eV/particle 1,440 eV/particle 1,520 eV/particle 1,590 eV/particle 1,670 eV/particle 1,750 eV/particle 1,830 eV/particle 1,910 eV/particle 1,990 eV/particle 2,070 eV/particle 2,140 eV/particle 2,220 eV/particle 2,578 eV/particle 2,646 eV/particle 2,718 eV/particle 2,794 eV/particle 2,867 eV/particle 2,938 eV/particle 3,073 eV/particle 3,147 eV/particle 3,228 eV/particle 3,301 eV/particle 3,602 eV/particle 3,675 eV/particle 3,753 eV/particle 3,827 eV/particle 4,214 eV/particle 4,299 eV/particle 4,510 eV/particle 4,598 eV/particle 7,393 eV/particle 7,550 eV/particle 7,730 eV/particle 7,910 eV/particle 8,090 eV/particle 8,260 eV/particle 8,650 eV/particle 8,830 eV/particle 9,030 eV/particle 9,210 eV/particle 9,720 eV/particle 9,870 eV/particle 10,040 eV/particle 10,200 eV/particle 11,410 eV/particle 11,600 eV/particle 11,990 eV/particle 12,160 eV/particle 25,260 eV/particle 25,680 eV/particle 26,150 eV/particle 26,590 eV/particle 31,060 eV/particle 31,640 eV/particle 32,400 eV/particle 32,836.5 eV/particle 129,570.3 eV/particle 131,821 eV/particle

enthalpy of vaporization	417 kJ/mol
enthalpy of fusion	12.6 kJ/mol
standard enthalpy of formation	533 kJ/mol
elektroni

Mzingo elektroni	2, 8, 18, 32, 21, 9, 2

valence electron	2 ⓘ

electron configuration	[Rn] 5f³ 6d¹ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f³ 6d¹ 7s²

oxidation number	-1, 1, 2, 3, 4, 5, 6
electronegativity	0.13207 1.7
Electrophilicity Index
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	4,404.15 K
Melting Point	1,408.15 K
critical pressure
critical temperature
Kiwango utatu
appearance
Rangi	Silver #ff1493 #008fff #008fff
appearance
refractive index
thermodynamic material property
Thermal Conductivity	27.5 W/(m K)
thermal expansion	0.0000139 1/K
molar heat capacity	27.665 J/(mol K)
Specific Heat Capacity	0.116 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	3.6 MS/m
electrical resistivity	0.00000028 Ω*m
superconductivity	0.69 K
Uga sumaku
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000216 m³/Kg
magnetic susceptibility (Molar)	0.00000000514 m³/mol
magnetic susceptibility (Volume)	0.000411
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure	Base Centered Orthorhombic (ORC)
lattice constant	2.85 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness	2,400 MPa 6 MPa 1,960 MPa
bulk modulus	100 GPa
shear modulus	111 GPa
Young's modulus	208 GPa
Poisson's ratio	0.23
speed of sound	3,155 m/s
classification
Category	Actinides, Actinides
CAS Group
IUPAC Group
Glawe Number	36
Mendeleev Number	20
Pettifor Number	45
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

other

Gas Basicity	973.2 kJ/mol
polarizability	129 ± 17 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section	7.57
Neutron Mass Absorption	0.0005
quantum number	5L6
space group	63 (Cmcm)

Isotopes of Uranium

Stable Isotopes	0
Unstable Isotopes	29
Natural Isotopes	3

²¹⁵U

mass number	215
neutron number	123
Relative Atomic Mass	215.026719774 ± 0.000111794 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	1.4 ± 0.9 ms
spin	5/2
nuclear quadrupole moment
Uvumbuzi	2015
parity	-

hali ya kuoza	intensity
α (α emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²¹⁶U

mass number	216
neutron number	124
Relative Atomic Mass	216.024762829 ± 0.000030158 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	6.9 ± 2.9 ms
spin	0
nuclear quadrupole moment	0
Uvumbuzi	2015
parity	+

hali ya kuoza	intensity
α (α emission)	100%

²¹⁷U

mass number	217
neutron number	125
Relative Atomic Mass	217.02466 ± 0.000086 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	850 ± 710 us
spin	1/2
nuclear quadrupole moment	0
Uvumbuzi	2000
parity	-

hali ya kuoza	intensity
α (α emission)	100%
β⁻ (β⁻ decay)

²¹⁸U

mass number	218
neutron number	126
Relative Atomic Mass	218.023504877 ± 0.000014722 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	354 ± 91 us
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1992
parity	+

hali ya kuoza	intensity
α (α emission)	100%

²¹⁹U

mass number	219
neutron number	127
Relative Atomic Mass	219.025009233 ± 0.000014319 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	60 ± 7 us
spin	9/2
nuclear quadrupole moment
Uvumbuzi	1993
parity	+

hali ya kuoza	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁰U

mass number	220
neutron number	128
Relative Atomic Mass	220.024706 ± 0.000108 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	0
nuclear quadrupole moment	0
Uvumbuzi
parity	+

hali ya kuoza	intensity
α (α emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²¹U

mass number	221
neutron number	129
Relative Atomic Mass	221.026323297 ± 0.00007744 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	660 ± 140 ns
spin	9/2
nuclear quadrupole moment
Uvumbuzi	2015
parity	+

hali ya kuoza	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²²U

mass number	222
neutron number	130
Relative Atomic Mass	222.026057957 ± 0.000055817 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	4.7 ± 0.7 us
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1983
parity	+

hali ya kuoza	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²³U

mass number	223
neutron number	131
Relative Atomic Mass	223.027960754 ± 0.000063396 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	65 ± 12 us
spin	7/2
nuclear quadrupole moment
Uvumbuzi	1991
parity	+

hali ya kuoza	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁴U

mass number	224
neutron number	132
Relative Atomic Mass	224.027635913 ± 0.000016383 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	396 ± 17 us
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1991
parity	+

hali ya kuoza	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁵U

mass number	225
neutron number	133
Relative Atomic Mass	225.02938505 ± 0.000010664 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	62 ± 4 ms
spin	5/2
nuclear quadrupole moment
Uvumbuzi	1989
parity	+

hali ya kuoza	intensity
α (α emission)	100%

²²⁶U

mass number	226
neutron number	134
Relative Atomic Mass	226.029338669 ± 0.000011884 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	269 ± 6 ms
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1973
parity	+

hali ya kuoza	intensity
α (α emission)	100%

²²⁷U

mass number	227
neutron number	135
Relative Atomic Mass	227.031181124 ± 0.000009136 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	1.1 ± 0.1 m
spin	3/2
nuclear quadrupole moment
Uvumbuzi	1952
parity	+

hali ya kuoza	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁸U

mass number	228
neutron number	136
Relative Atomic Mass	228.031368959 ± 0.000014465 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	9.1 ± 0.2 m
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1949
parity	+

hali ya kuoza	intensity
α (α emission)	97.5%
ϵ (electron capture)	2.5%

²²⁹U

mass number	229
neutron number	137
Relative Atomic Mass	229.033505976 ± 0.000006374 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	57.8 ± 0.5 m
spin	3/2
nuclear quadrupole moment
Uvumbuzi	1949
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	80%
α (α emission)	20%

²³⁰U

mass number	230
neutron number	138
Relative Atomic Mass	230.033940114 ± 0.000004841 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	20.23 ± 0.02 d
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1948
parity	+

hali ya kuoza	intensity
α (α emission)	100%
22Ne	4.8%
SF (spontaneous fission)

²³¹U

mass number	231
neutron number	139
Relative Atomic Mass	231.03629218 ± 0.000002866 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	4.2 ± 0.1 d
spin	5/2
nuclear quadrupole moment
Uvumbuzi	1949
parity	+

hali ya kuoza	intensity
ϵ (electron capture)	100%
α (α emission)	0.004%

²³²U

mass number	232
neutron number	140
Relative Atomic Mass	232.037154765 ± 0.000001941 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	68.9 ± 0.4 y
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1949
parity	+

hali ya kuoza	intensity
α (α emission)	100%
24Ne (heavy cluster emission)	8.9%
SF (spontaneous fission)	2.7%
28Mg	5%

²³³U

mass number	233
neutron number	141
Relative Atomic Mass	233.039634294 ± 0.00000242 Da
g-factor	-0.236 ± 0.02
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	159.19 ± 0.15 ky
spin	5/2
nuclear quadrupole moment	3.663 ± 0.008
Uvumbuzi	1947
parity	+

hali ya kuoza	intensity
α (α emission)	100%
SF (spontaneous fission)	6%
24Ne (heavy cluster emission)	7.2%
28Mg	1.3%

²³⁴U

mass number	234
neutron number	142
Relative Atomic Mass	234.040950296 ± 0.000001212 Da
g-factor	0
natural abundance	0.0054 ± 0.0005
Unururifu	☢️ radioactive element
Nusumaisha	245.5 ± 0.6 ky
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1912
parity	+

hali ya kuoza	intensity
α (α emission)	100%
SF (spontaneous fission)	1.64%
28Mg	1.4%
26Ne	9%

²³⁵U

mass number	235
neutron number	143
Relative Atomic Mass	235.043928117 ± 0.000001198 Da
g-factor	-0.10857142857143 ± 0.0085714285714286
natural abundance	0.7204 ± 0.0006
Unururifu	☢️ radioactive element
Nusumaisha	704 ± 1 My
spin	7/2
nuclear quadrupole moment	4.936 ± 0.006
Uvumbuzi	1935
parity	-

hali ya kuoza	intensity
α (α emission)	100%
SF (spontaneous fission)	7%
20Ne	8%
25Ne	8%
28Mg	8%

²³⁶U

mass number	236
neutron number	144
Relative Atomic Mass	236.04556613 ± 0.000001193 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	23.42 ± 0.04 My
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1951
parity	+

hali ya kuoza	intensity
α (α emission)	100%
SF (spontaneous fission)	9.4%

²³⁷U

mass number	237
neutron number	145
Relative Atomic Mass	237.048728309 ± 0.00000129 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	6.752 ± 0.002 d
spin	1/2
nuclear quadrupole moment	0
Uvumbuzi	1940
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

²³⁸U

mass number	238
neutron number	146
Relative Atomic Mass	238.050786936 ± 0.000001601 Da
g-factor	0
natural abundance	99.2742 ± 0.001
Unururifu	☢️ radioactive element
Nusumaisha	4.463 ± 0.003 Gy
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1896
parity	+

hali ya kuoza	intensity
α (α emission)	100%
SF (spontaneous fission)	5.44%
2β⁻ (double β⁻ decay)	2.2%

²³⁹U

mass number	239
neutron number	147
Relative Atomic Mass	239.054291989 ± 0.000001612 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	23.45 ± 0.02 m
spin	5/2
nuclear quadrupole moment
Uvumbuzi	1937
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

²⁴⁰U

mass number	240
neutron number	148
Relative Atomic Mass	240.056592411 ± 0.00000274 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	14.1 ± 0.1 h
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1953
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
α (α emission)

²⁴¹U

mass number	241
neutron number	149
Relative Atomic Mass	241.06033 ± 0.00021 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	7/2
nuclear quadrupole moment
Uvumbuzi
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)

²⁴²U

mass number	242
neutron number	150
Relative Atomic Mass	242.062931 ± 0.000215 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	16.8 ± 0.5 m
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1979
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

²⁴³U

mass number	243
neutron number	151
Relative Atomic Mass	243.067075 ± 0.000322 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	9/2
nuclear quadrupole moment
Uvumbuzi
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)

historia

mgunduzi au mvumbuzi	Martin Klaproth
location of discovery	Germany
Uvumbuzi	1789
Etimolojia	Named for the planet Uranus.
pronunciation	yoo-RAY-ni-em (Kiingereza)

source

Abundance
Abundance in Earth's crust	2.7 mg/kg
natural abundance (Bahari)	0.0032 mg/L
natural abundance (Mwili)	0.0000001 %
natural abundance (Kimondo)	0.00000098 %
natural abundance (Jua)	0.0000001 %
Abundance in Universe	0.00000002 %

Nuclear Screening Constants

Urani on ChemicalAid

AGROVOC ID	c_8084
ASC Leiden Thesaurus ID	294942866
Art & Architecture Thesaurus ID	300011035
Australian Educational Vocabulary ID	scot/3596
BNCF Thesaurus ID	28092
Bibliothèque nationale de France ID	119337333
CAB ID	7541
CA PROP 65 ID	uranium
CAS Registry Number	7440-61-1
ChEBI ID	49936
ChemSpider ID	22425
Common Procurement Vocabulary	09341000
DSSTOX compound identifier	DTXCID304373
DSSTox substance ID	DTXSID1042522
DeCS ID	29600
Den Store Danske ID	uran
ECHA Substance Infocard ID	100.028.336
Encyclopædia Britannica Online ID	science/uranium
Encyclopædia Universalis ID	uranium
EuroVoc ID	4617
Freebase ID	/m/025smjn
French Vikidia ID	Uranium
GEMET ID	8791
GND	4187153-4
Giant Bomb ID	3055-1158
Gran Enciclopèdia Catalana ID	0239849
Great Russian Encyclopedia Online ID	4700723
HCIS ID	4695
HSDB ID	2553
InChI	InChI=1S/U
InChIKey	JFALSRSLKYAFGM-UHFFFAOYSA-N
KBpedia ID	Uranium
Krugosvet article	nauka_i_tehnika/himiya/URAN.html
LEM ID	LEM201013089
Library of Congress authority ID	sh85141276
MeSH descriptor ID	D014501
NDL Authority ID	00574039
NE.se ID	uran
NKCR AUT ID	ph126944
Namuwiki ID	우라늄
National Library of Israel J9U ID	987007529652205171
OmegaWiki Defined Meaning	3902
OpenAlex ID	C555451288
PDB ligand ID	U1
PDB structure ID	1B0H
PDB structure ID	1B05
PDB structure ID	1B7H
PDB structure ID	1UYJ
PDB structure ID	1B5J
PDB structure ID	1B5H
PDB structure ID	1B5I
PDB structure ID	1B3H
PDB structure ID	3DGC
PDB structure ID	1B6H
PDB structure ID	1B4H
PDB structure ID	1B2H
PSH ID	5771
PubChem CID	23989
Quora topic ID	Uranium
RxNorm ID	10999
Römpp online ID	RD-21-00662
STW Thesaurus for Economics ID	14222-5
Store medisinske leksikon ID	uran
Store norske leksikon ID	uran
Treccani ID	uranio
U.S. National Archives Identifier	10644103
UK Archival Thesaurus ID	f2/mt225/4347/6506
UK Parliament thesaurus ID	13549
UNESCO Thesaurus ID	concept14026
UNII	4OC371KSTK
USGS Thesaurus ID	1605
WordNet 3.1 Synset ID	14684622-n
YSO ID	11691
ZVG number	7920

Urani (U)

Physical Property

Chemical Property

other

Isotopes of Uranium

215U

216U

217U

218U

219U

220U

221U

222U

223U

224U

225U

226U

227U

228U

229U

230U

231U

232U

233U

234U

235U

236U

237U

238U

239U

240U

241U

242U

243U

historia

source

Nuclear Screening Constants

²¹⁵U

²¹⁶U

²¹⁷U

²¹⁸U

²¹⁹U

²²⁰U

²²¹U

²²²U

²²³U

²²⁴U

²²⁵U

²²⁶U

²²⁷U

²²⁸U

²²⁹U

²³⁰U

²³¹U

²³²U

²³³U

²³⁴U

²³⁵U

²³⁶U

²³⁷U

²³⁸U

²³⁹U

²⁴⁰U

²⁴¹U

²⁴²U

²⁴³U