Urani

Urani (U)

radioactive, metallic element with the atomic number 92
Atomic Number92
Atomic Weight238.02891
mass number238
Group
Period7
Blockf
protoni92 p+
nyutroni146 n0
elektroni92 e-
Animated Bohr model of U (Urani)

Physical Property

Atomic Radius
175 pm
molar volume
Covalent Radius
170 pm
Metallic Radius
ionic radius
102.5 pm
Crystal Radius
116.5 pm
Van der Waals radius
241 pm
msongamano
19.1 g/cm³
Atomic Radii Of The Elements: Urani0102030405060708090100110120130140150160170180190200210220230240250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

nishati
proton affinity
995.2 kJ/mol
electron affinity
ionization energy
6.19405 eV/particle
ionization energy of U (Urani)
enthalpy of vaporization
417 kJ/mol
enthalpy of fusion
12.6 kJ/mol
standard enthalpy of formation
533 kJ/mol
elektroni
Mzingo elektroni2, 8, 18, 32, 21, 9, 2
Bohr model: U (Urani)
valence electron2
Lewis structure: U (Urani)
electron configuration[Rn] 5f3 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f3 6d1 7s2
Enhanced Bohr model of U (Urani)
Orbital Diagram of U (Urani)
oxidation number-1, 1, 2, 3, 4, 5, 6
electronegativity
1.7
Electrophilicity Index
fundamental state of matter
phase of matterSolid
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
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
typeConductor
electrical conductivity
3.6 MS/m
electrical resistivity
0.00000028 m Ω
superconductivity
0.69 K
Uga sumaku
typeparamagnetic
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 StructureBase Centered Orthorhombic (ORC)
lattice constant
2.85 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
6 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
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number36
Mendeleev Number20
Pettifor Number45
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

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 number5L6
space group63 (Cmcm)

Isotopes of Uranium

Stable Isotopes0
Unstable Isotopes29
Natural Isotopes3
Isotopic Composition23899.27%23899.27%2340.01%2340.01%2350.72%2350.72%

215U

mass number215
neutron number123
relative atomic mass
215.026719774 ± 0.000111794 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
1.4 ± 0.9 ms
spin5/2
nuclear quadrupole moment
Uvumbuzi2015
parity-

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

216U

mass number216
neutron number124
relative atomic mass
216.024762829 ± 0.000030158 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
6.9 ± 2.9 ms
spin0
nuclear quadrupole moment
0
Uvumbuzi2015
parity+

hali ya kuozaintensity
α (α emission)100%

217U

mass number217
neutron number125
relative atomic mass
217.02466 ± 0.000086 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
850 ± 710 us
spin1/2
nuclear quadrupole moment
0
Uvumbuzi2000
parity-

hali ya kuozaintensity
α (α emission)100%
β (β decay)

218U

mass number218
neutron number126
relative atomic mass
218.023504877 ± 0.000014722 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
354 ± 91 us
spin0
nuclear quadrupole moment
0
Uvumbuzi1992
parity+

hali ya kuozaintensity
α (α emission)100%

219U

mass number219
neutron number127
relative atomic mass
219.025009233 ± 0.000014319 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
60 ± 7 us
spin9/2
nuclear quadrupole moment
Uvumbuzi1993
parity+

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

220U

mass number220
neutron number128
relative atomic mass
220.024706 ± 0.000108 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi
parity+

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

221U

mass number221
neutron number129
relative atomic mass
221.026323297 ± 0.00007744 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
660 ± 140 ns
spin9/2
nuclear quadrupole moment
Uvumbuzi2015
parity+

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

222U

mass number222
neutron number130
relative atomic mass
222.026057957 ± 0.000055817 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
4.7 ± 0.7 us
spin0
nuclear quadrupole moment
0
Uvumbuzi1983
parity+

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

223U

mass number223
neutron number131
relative atomic mass
223.027960754 ± 0.000063396 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
65 ± 12 us
spin7/2
nuclear quadrupole moment
Uvumbuzi1991
parity+

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

224U

mass number224
neutron number132
relative atomic mass
224.027635913 ± 0.000016383 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
396 ± 17 us
spin0
nuclear quadrupole moment
0
Uvumbuzi1991
parity+

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

225U

mass number225
neutron number133
relative atomic mass
225.02938505 ± 0.000010664 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
62 ± 4 ms
spin5/2
nuclear quadrupole moment
Uvumbuzi1989
parity+

hali ya kuozaintensity
α (α emission)100%

226U

mass number226
neutron number134
relative atomic mass
226.029338669 ± 0.000011884 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
269 ± 6 ms
spin0
nuclear quadrupole moment
0
Uvumbuzi1973
parity+

hali ya kuozaintensity
α (α emission)100%

227U

mass number227
neutron number135
relative atomic mass
227.031181124 ± 0.000009136 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
1.1 ± 0.1 m
spin3/2
nuclear quadrupole moment
Uvumbuzi1952
parity+

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

228U

mass number228
neutron number136
relative atomic mass
228.031368959 ± 0.000014465 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
9.1 ± 0.2 m
spin0
nuclear quadrupole moment
0
Uvumbuzi1949
parity+

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

229U

mass number229
neutron number137
relative atomic mass
229.033505976 ± 0.000006374 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
57.8 ± 0.5 m
spin3/2
nuclear quadrupole moment
Uvumbuzi1949
parity+

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

230U

mass number230
neutron number138
relative atomic mass
230.033940114 ± 0.000004841 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
20.23 ± 0.02 d
spin0
nuclear quadrupole moment
0
Uvumbuzi1948
parity+

hali ya kuozaintensity
α (α emission)100%
22Ne4.8%
SF (spontaneous fission)

231U

mass number231
neutron number139
relative atomic mass
231.03629218 ± 0.000002866 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
4.2 ± 0.1 d
spin5/2
nuclear quadrupole moment
Uvumbuzi1949
parity+

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

232U

mass number232
neutron number140
relative atomic mass
232.037154765 ± 0.000001941 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
68.9 ± 0.4 y
spin0
nuclear quadrupole moment
0
Uvumbuzi1949
parity+

hali ya kuozaintensity
α (α emission)100%
24Ne (heavy cluster emission)8.9%
SF (spontaneous fission)2.7%
28Mg5%

233U

mass number233
neutron number141
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
spin5/2
nuclear quadrupole moment
3.663 ± 0.008
Uvumbuzi1947
parity+

hali ya kuozaintensity
α (α emission)100%
SF (spontaneous fission)6%
24Ne (heavy cluster emission)7.2%
28Mg1.3%

234U

mass number234
neutron number142
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
spin0
nuclear quadrupole moment
0
Uvumbuzi1912
parity+

hali ya kuozaintensity
α (α emission)100%
SF (spontaneous fission)1.64%
28Mg1.4%
26Ne9%

235U

mass number235
neutron number143
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
spin7/2
nuclear quadrupole moment
4.936 ± 0.006
Uvumbuzi1935
parity-

hali ya kuozaintensity
α (α emission)100%
SF (spontaneous fission)7%
20Ne8%
25Ne8%
28Mg8%

236U

mass number236
neutron number144
relative atomic mass
236.04556613 ± 0.000001193 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
23.42 ± 0.04 My
spin0
nuclear quadrupole moment
0
Uvumbuzi1951
parity+

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

237U

mass number237
neutron number145
relative atomic mass
237.048728309 ± 0.00000129 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
6.752 ± 0.002 d
spin1/2
nuclear quadrupole moment
0
Uvumbuzi1940
parity+

hali ya kuozaintensity
β (β decay)100%

238U

mass number238
neutron number146
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
spin0
nuclear quadrupole moment
0
Uvumbuzi1896
parity+

hali ya kuozaintensity
α (α emission)100%
SF (spontaneous fission)5.44%
(double β decay)2.2%

239U

mass number239
neutron number147
relative atomic mass
239.054291989 ± 0.000001612 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
23.45 ± 0.02 m
spin5/2
nuclear quadrupole moment
Uvumbuzi1937
parity+

hali ya kuozaintensity
β (β decay)100%

240U

mass number240
neutron number148
relative atomic mass
240.056592411 ± 0.00000274 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
14.1 ± 0.1 h
spin0
nuclear quadrupole moment
0
Uvumbuzi1953
parity+

hali ya kuozaintensity
β (β decay)100%
α (α emission)

241U

mass number241
neutron number149
relative atomic mass
241.06033 ± 0.00021 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin7/2
nuclear quadrupole moment
Uvumbuzi
parity+

hali ya kuozaintensity
β (β decay)

242U

mass number242
neutron number150
relative atomic mass
242.062931 ± 0.000215 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
16.8 ± 0.5 m
spin0
nuclear quadrupole moment
0
Uvumbuzi1979
parity+

hali ya kuozaintensity
β (β decay)100%

243U

mass number243
neutron number151
relative atomic mass
243.067075 ± 0.000322 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin9/2
nuclear quadrupole moment
Uvumbuzi
parity-

hali ya kuozaintensity
β (β decay)
Uranium2

historia

mgunduzi au mvumbuziMartin Klaproth
location of discoveryGermany
Uvumbuzi1789
EtimolojiaNamed for the planet Uranus.
pronunciationyoo-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