Urāns (U)

Radioaktīvs ķīmiskais elements

Atomic Number	92
Atomic Weight	238.02891
Masas skaitlis	238

Group
Period	7
Block	f

protons	92 p⁺
neitrons	146 n⁰
elektrons	92 e^-

Animated Bora atoma struktūras modelis of U (Urāns)

Fizikāla Īpašība

Atoma Rādiuss	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
blīvums	19,1 g/cm³ 17 300 kg/m³

Chemical Property

{ERROR}

enerģija

proton affinity	995,2 kJ/mol
Elektrontieksme
jonizācijas potenciāls	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
elektrons

electron shell	2, 8, 18, 32, 21, 9, 2

vērtības elektrons	2 ⓘ

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

Oksidēšanas pakāpe	-1, 1, 2, 3, 4, 5, 6
elektronegativitāte	0.13207 1.7
Electrophilicity Index
fundamentālais agregātstāvoklis

agregātstāvoklis
gaseous state of matter
Boiling Point	4 404,15 K
Melting Point	1 408,15 K
critical pressure
critical temperature
trīskāršais punkts
appearance
krāsa	Black #ff1493 #008fff #008fff
appearance
Laušanas koeficients
thermodynamic material property
Thermal Conductivity	27,5 W/(m K)
Termiskā izplešanās	0,0000139 1/K
Molārā siltumietilpība	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
īpatnējā pretestība	0,00000028 Ω*m
Supravadītspēja	0,69 K
Magnētisms
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
struktūra
Crystal Structure	{ERROR}
lattice constant	2,85 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
Cietība	2 400 MPa 6 MPa 1 960 MPa
tilpuma elastības modulis	100 GPa
shear modulus	111 GPa
Junga modulis	208 GPa
Poisson's ratio	0,23
skaņas ātrums	3 155 m/s
klasifikācija
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

Masas skaitlis	215
neutron number	123
Relative Atomic Mass	215,026719774 ± 0,000111794 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	1,4 ± 0,9 ms
spins	5/2
nuclear quadrupole moment
atklāšanas datums	2015
parity	-

decay mode	intensity
α (α emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²¹⁶U

Masas skaitlis	216
neutron number	124
Relative Atomic Mass	216,024762829 ± 0,000030158 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	6,9 ± 2,9 ms
spins	0
nuclear quadrupole moment	0
atklāšanas datums	2015
parity	+

decay mode	intensity
α (α emission)	100%

²¹⁷U

Masas skaitlis	217
neutron number	125
Relative Atomic Mass	217,02466 ± 0,000086 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	850 ± 710 us
spins	1/2
nuclear quadrupole moment	0
atklāšanas datums	2000
parity	-

decay mode	intensity
α (α emission)	100%
β⁻ (β⁻ decay)

²¹⁸U

Masas skaitlis	218
neutron number	126
Relative Atomic Mass	218,023504877 ± 0,000014722 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	354 ± 91 us
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1992
parity	+

decay mode	intensity
α (α emission)	100%

²¹⁹U

Masas skaitlis	219
neutron number	127
Relative Atomic Mass	219,025009233 ± 0,000014319 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	60 ± 7 us
spins	9/2
nuclear quadrupole moment
atklāšanas datums	1993
parity	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁰U

Masas skaitlis	220
neutron number	128
Relative Atomic Mass	220,024706 ± 0,000108 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	0
nuclear quadrupole moment	0
atklāšanas datums
parity	+

decay mode	intensity
α (α emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²¹U

Masas skaitlis	221
neutron number	129
Relative Atomic Mass	221,026323297 ± 0,00007744 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	660 ± 140 ns
spins	9/2
nuclear quadrupole moment
atklāšanas datums	2015
parity	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²²U

Masas skaitlis	222
neutron number	130
Relative Atomic Mass	222,026057957 ± 0,000055817 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	4,7 ± 0,7 us
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1983
parity	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²³U

Masas skaitlis	223
neutron number	131
Relative Atomic Mass	223,027960754 ± 0,000063396 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	65 ± 12 us
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1991
parity	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁴U

Masas skaitlis	224
neutron number	132
Relative Atomic Mass	224,027635913 ± 0,000016383 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	396 ± 17 us
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1991
parity	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁵U

Masas skaitlis	225
neutron number	133
Relative Atomic Mass	225,02938505 ± 0,000010664 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	62 ± 4 ms
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1989
parity	+

decay mode	intensity
α (α emission)	100%

²²⁶U

Masas skaitlis	226
neutron number	134
Relative Atomic Mass	226,029338669 ± 0,000011884 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	269 ± 6 ms
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1973
parity	+

decay mode	intensity
α (α emission)	100%

²²⁷U

Masas skaitlis	227
neutron number	135
Relative Atomic Mass	227,031181124 ± 0,000009136 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	1,1 ± 0,1 m
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1952
parity	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²²⁸U

Masas skaitlis	228
neutron number	136
Relative Atomic Mass	228,031368959 ± 0,000014465 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	9,1 ± 0,2 m
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1949
parity	+

decay mode	intensity
α (α emission)	97.5%
ϵ (electron capture)	2.5%

²²⁹U

Masas skaitlis	229
neutron number	137
Relative Atomic Mass	229,033505976 ± 0,000006374 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	57,8 ± 0,5 m
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1949
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	80%
α (α emission)	20%

²³⁰U

Masas skaitlis	230
neutron number	138
Relative Atomic Mass	230,033940114 ± 0,000004841 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	20,23 ± 0,02 d
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1948
parity	+

decay mode	intensity
α (α emission)	100%
22Ne	4.8%
SF (spontaneous fission)

²³¹U

Masas skaitlis	231
neutron number	139
Relative Atomic Mass	231,03629218 ± 0,000002866 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	4,2 ± 0,1 d
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1949
parity	+

decay mode	intensity
ϵ (electron capture)	100%
α (α emission)	0.004%

²³²U

Masas skaitlis	232
neutron number	140
Relative Atomic Mass	232,037154765 ± 0,000001941 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	68,9 ± 0,4 y
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1949
parity	+

decay mode	intensity
α (α emission)	100%
24Ne (heavy cluster emission)	8.9%
SF (spontaneous fission)	2.7%
28Mg	5%

²³³U

Masas skaitlis	233
neutron number	141
Relative Atomic Mass	233,039634294 ± 0,00000242 Da
g-factor	-0,236 ± 0,02
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	159,19 ± 0,15 ky
spins	5/2
nuclear quadrupole moment	3,663 ± 0,008
atklāšanas datums	1947
parity	+

decay mode	intensity
α (α emission)	100%
SF (spontaneous fission)	6%
24Ne (heavy cluster emission)	7.2%
28Mg	1.3%

²³⁴U

Masas skaitlis	234
neutron number	142
Relative Atomic Mass	234,040950296 ± 0,000001212 Da
g-factor	0
natural abundance	0,0054 ± 0,0005
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	245,5 ± 0,6 ky
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1912
parity	+

decay mode	intensity
α (α emission)	100%
SF (spontaneous fission)	1.64%
28Mg	1.4%
26Ne	9%

²³⁵U

Masas skaitlis	235
neutron number	143
Relative Atomic Mass	235,043928117 ± 0,000001198 Da
g-factor	-0,10857142857143 ± 0,0085714285714286
natural abundance	0,7204 ± 0,0006
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	704 ± 1 My
spins	7/2
nuclear quadrupole moment	4,936 ± 0,006
atklāšanas datums	1935
parity	-

decay mode	intensity
α (α emission)	100%
SF (spontaneous fission)	7%
20Ne	8%
25Ne	8%
28Mg	8%

²³⁶U

Masas skaitlis	236
neutron number	144
Relative Atomic Mass	236,04556613 ± 0,000001193 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	23,42 ± 0,04 My
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1951
parity	+

decay mode	intensity
α (α emission)	100%
SF (spontaneous fission)	9.4%

²³⁷U

Masas skaitlis	237
neutron number	145
Relative Atomic Mass	237,048728309 ± 0,00000129 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	6,752 ± 0,002 d
spins	1/2
nuclear quadrupole moment	0
atklāšanas datums	1940
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²³⁸U

Masas skaitlis	238
neutron number	146
Relative Atomic Mass	238,050786936 ± 0,000001601 Da
g-factor	0
natural abundance	99,2742 ± 0,001
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	4,463 ± 0,003 Gy
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1896
parity	+

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

²³⁹U

Masas skaitlis	239
neutron number	147
Relative Atomic Mass	239,054291989 ± 0,000001612 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	23,45 ± 0,02 m
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1937
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁴⁰U

Masas skaitlis	240
neutron number	148
Relative Atomic Mass	240,056592411 ± 0,00000274 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	14,1 ± 0,1 h
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1953
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
α (α emission)

²⁴¹U

Masas skaitlis	241
neutron number	149
Relative Atomic Mass	241,06033 ± 0,00021 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	7/2
nuclear quadrupole moment
atklāšanas datums
parity	+

decay mode	intensity
β⁻ (β⁻ decay)

²⁴²U

Masas skaitlis	242
neutron number	150
Relative Atomic Mass	242,062931 ± 0,000215 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	16,8 ± 0,5 m
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1979
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁴³U

Masas skaitlis	243
neutron number	151
Relative Atomic Mass	243,067075 ± 0,000322 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	9/2
nuclear quadrupole moment
atklāšanas datums
parity	-

decay mode	intensity
β⁻ (β⁻ decay)

vēsture

atklājējs vai izgudrotājs	Martin Klaproth
atraduma atrašanās vieta	Germany
atklāšanas datums	1789
Etimoloģija	Named for the planet Uranus.
izruna	yoo-RAY-ni-em (angļu)

avots

Abundance
Abundance in Earth's crust	2,7 mg/kg
natural abundance (okeāns)	0,0032 mg/L
natural abundance (cilvēka ķermenis)	0,0000001 %
natural abundance (meteoroīds)	0,00000098 %
natural abundance (Saule)	0,0000001 %
Abundance in Universe	0,00000002 %

Nuclear Screening Constants

Urāns on ChemicalAid

Urāns (U)

Fizikāla Īpašība

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

vēsture

avots

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