Europioa

Europioa (Eu)

Zenbaki atomikoa 63 duen elementu kimikoa. Lur arraroen multzoko metal biguna eta grisa da, lur arraroetan erreaktiboena; besteak beste, neutroi-xurgatzaile gisa erabiltzen da erreaktoreetan.
Atomic Number63
Atomic Weight151.964
masa-zenbaki153
Group
Period6
Blockf
protoi63 p+
neutroi90 n0
elektroi63 e-
Animated Bohrren eredu atomikoa of Eu (Europioa)

Propietate Fisiko

Erradio Atomiko
185 pm
bolumen molar
Erradio Kobalente
168 pm
Metallic Radius
Erradio ioniko
117 pm
Crystal Radius
131 pm
Van der Waalsen erradio
235 pm
dentsitatea
5,24 g/cm³
Atomic Radii Of The Elements: Europioa0102030405060708090100110120130140150160170180190200210220230240pmErradio AtomikoErradio KobalenteMetallic RadiusVan der Waalsen erradio

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
ionizazio energia
5,670385 eV/particle
ionizazio energia of Eu (Europioa)
Irakite-entalpia
176 kJ/mol
urtze-entalpia
formazio entalpia estandarra
177,4 kJ/mol
elektroi
elektroi geruza2, 8, 18, 25, 8, 2
Bohrren eredu atomikoa: Eu (Europioa)
balentzia-elektroi2
Lewis egitura: Eu (Europioa)
electron configuration[Xe] 4f7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f7 6s2
Enhanced Bohrren eredu atomikoa of Eu (Europioa)
Orbital Diagram of Eu (Europioa)
Oxidazio-egoera0, 2, 3
Elektronegatibotasun
Electrophilicity Index
1,1104548254099753 eV/particle
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
1.802,15 K
Melting Point
1.095,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore
Silver
appearance
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
13,9 W/(m K)
Bero-dilatazio
0,000035 1/K
molar heat capacity
27,66 J/(mol K)
Specific Heat Capacity
0,182 J/(g⋅K)
indize adiabatiko
electrical properties
typeConductor
Eroankortasun elektriko
1,1 MS/m
Erresistibitate elektriko
0,0000009 m Ω
Supereroankortasun
1,8 K
Magnetismo
typeparamagnetic
suszeptibilitate magnetiko (Mass)
0,000000276 m³/Kg
suszeptibilitate magnetiko (Molar)
0,000000041942 m³/mol
suszeptibilitate magnetiko (Volume)
0,0014473
magnetic ordering
Curieren tenperatura
Néel temperature
90,5 K
egitura
Crystal StructureBody Centered Cubic (BCC)
lattice constant
4,61 Å
Lattice Anglesπ/2, π/2, π/2
materialen propietate mekaniko
Gogortasun
konprimagarritasun-modulu
8,3 GPa
Zizaila modulua
7,9 GPa
Youngen modulu
18 GPa
Poissonen modulu
0,15
Soinuaren lastertasun
classification
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number17
Mendeleev Number25
Pettifor Number18
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

beste batzuk

Gas Basicity
polarizability
184 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
4.570
Neutron Mass Absorption
0,6
zenbaki kuantiko8S7/2
talde espazial229 (Im_3m)

Isotopes of Europium

Stable Isotopes1
Unstable Isotopes40
Natural Isotopes2
Isotopic Composition15352.19%15352.19%15147.81%15147.81%

130Eu

masa-zenbaki130
neutron number67
atomo-masa erlatibo
129,964022 ± 0,000578 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1 ± 0,4 ms
spin1
nuclear quadrupole moment
aurkikuntza-data2004
parity+

decay modeintensity
p (proton emission)100%
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

131Eu

masa-zenbaki131
neutron number68
atomo-masa erlatibo
130,957634 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
17,8 ± 1,9 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1998
parity+

decay modeintensity
p (proton emission)89%
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

132Eu

masa-zenbaki132
neutron number69
atomo-masa erlatibo
131,954696 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin1
nuclear quadrupole moment
aurkikuntza-data
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)
p (proton emission)0%

133Eu

masa-zenbaki133
neutron number70
atomo-masa erlatibo
132,94929 ± 0,00032 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin5/2
nuclear quadrupole moment
aurkikuntza-data
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

134Eu

masa-zenbaki134
neutron number71
atomo-masa erlatibo
133,946537 ± 0,000322 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
500 ± 200 ms
spin
nuclear quadrupole moment
aurkikuntza-data1989
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

135Eu

masa-zenbaki135
neutron number72
atomo-masa erlatibo
134,94187 ± 0,00021 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,5 ± 0,2 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data1989
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

136Eu

masa-zenbaki136
neutron number73
atomo-masa erlatibo
135,93962 ± 0,00021 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
3,3 ± 0,3 s
spin6
nuclear quadrupole moment
aurkikuntza-data1987
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.09%

137Eu

masa-zenbaki137
neutron number74
atomo-masa erlatibo
136,935430719 ± 0,0000047 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
8,4 ± 0,5 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data1982
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

138Eu

masa-zenbaki138
neutron number75
atomo-masa erlatibo
137,933709 ± 0,00003 Da
g-factor
0,88333333333333 ± 0,11666666666667
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin2
nuclear quadrupole moment
aurkikuntza-data1982
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)

139Eu

masa-zenbaki139
neutron number76
atomo-masa erlatibo
138,929792307 ± 0,000014117 Da
g-factor
1,1090909090909 ± 0,14545454545455
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
17,9 ± 0,6 s
spin11/2
nuclear quadrupole moment
aurkikuntza-data1975
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

140Eu

masa-zenbaki140
neutron number77
atomo-masa erlatibo
139,928087633 ± 0,000055328 Da
g-factor
1,362 ± 0,013
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,51 ± 0,02 s
spin1
nuclear quadrupole moment
aurkikuntza-data1982
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)95.1%
ϵ (electron capture)4.9%

141Eu

masa-zenbaki141
neutron number78
atomo-masa erlatibo
140,924931734 ± 0,000013568 Da
g-factor
1,3944 ± 0,0032
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
40,7 ± 0,7 s
spin5/2
nuclear quadrupole moment
0,85 ± 0,04
aurkikuntza-data1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

142Eu

masa-zenbaki142
neutron number79
atomo-masa erlatibo
141,923446719 ± 0,000032268 Da
g-factor
1,532 ± 0,019
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,36 ± 0,1 s
spin1
nuclear quadrupole moment
0,12 ± 0,05
aurkikuntza-data1966
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)89.9%
ϵ (electron capture)10.1%

143Eu

masa-zenbaki143
neutron number80
atomo-masa erlatibo
142,920298678 ± 0,000011793 Da
g-factor
1,4656 ± 0,0032
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,59 ± 0,02 m
spin5/2
nuclear quadrupole moment
0,51 ± 0,03
aurkikuntza-data1965
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

144Eu

masa-zenbaki144
neutron number81
atomo-masa erlatibo
143,918819481 ± 0,00001158 Da
g-factor
1,888 ± 0,013
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
10,2 ± 0,1 s
spin1
nuclear quadrupole moment
0,1 ± 0,03
aurkikuntza-data1965
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

145Eu

masa-zenbaki145
neutron number82
atomo-masa erlatibo
144,916272659 ± 0,000003285 Da
g-factor
1,5932 ± 0,0028
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
5,93 ± 0,04 d
spin5/2
nuclear quadrupole moment
0,29 ± 0,02
aurkikuntza-data1951
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

146Eu

masa-zenbaki146
neutron number83
atomo-masa erlatibo
145,917210852 ± 0,000006451 Da
g-factor
0,3555 ± 0,00275
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,61 ± 0,03 d
spin4
nuclear quadrupole moment
−0,18 ± 0,06
aurkikuntza-data1957
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

147Eu

masa-zenbaki147
neutron number84
atomo-masa erlatibo
146,91675244 ± 0,000002758 Da
g-factor
1,486 ± 0,0032
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
24,1 ± 0,6 d
spin5/2
nuclear quadrupole moment
0,55 ± 0,03
aurkikuntza-data1951
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.0022%

148Eu

masa-zenbaki148
neutron number85
atomo-masa erlatibo
147,918091288 ± 0,000010693 Da
g-factor
0,4668 ± 0,002
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
54,5 ± 0,5 d
spin5
nuclear quadrupole moment
0,35 ± 0,06
aurkikuntza-data1951
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)9.4%

149Eu

masa-zenbaki149
neutron number86
atomo-masa erlatibo
148,917936875 ± 0,00000419 Da
g-factor
1,4224 ± 0,0024
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
93,1 ± 0,4 d
spin5/2
nuclear quadrupole moment
0,75 ± 0,02
aurkikuntza-data1959
parity+

decay modeintensity
ϵ (electron capture)100%

150Eu

masa-zenbaki150
neutron number87
atomo-masa erlatibo
149,919707092 ± 0,000006688 Da
g-factor
0,5404 ± 0,0022
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
36,9 ± 0,9 y
spin5
nuclear quadrupole moment
1,13 ± 0,05
aurkikuntza-data1950
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

151Eu

masa-zenbaki151
neutron number88
atomo-masa erlatibo
150,919856606 ± 0,000001251 Da
g-factor
1,3854 ± 0,001
natural abundance
47,81 ± 0,06
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,6 ± 1,2 Ey
spin5/2
nuclear quadrupole moment
0,903 ± 0,01
aurkikuntza-data1933
parity+

decay modeintensity
α (α emission)100%

152Eu

masa-zenbaki152
neutron number89
atomo-masa erlatibo
151,92175098 ± 0,000001252 Da
g-factor
−0,64513333333333 ± 0,00056666666666667
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
13,517 ± 0,006 y
spin3
nuclear quadrupole moment
2,72 ± 0,03
aurkikuntza-data1938
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)72.08%
β (β decay)27.92%

153Eu

masa-zenbaki153
neutron number90
atomo-masa erlatibo
152,921236789 ± 0,000001257 Da
g-factor
0,61176 ± 0,00044
natural abundance
52,19 ± 0,06
desintegrazio erradioaktiboisotopo egonkor
Semidesintegrazio-periodoNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
2,41 ± 0,02
aurkikuntza-data1933
parity+

154Eu

masa-zenbaki154
neutron number91
atomo-masa erlatibo
153,922985699 ± 0,000001275 Da
g-factor
−0,66666666666667 ± 0,002
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
8,592 ± 0,003 y
spin3
nuclear quadrupole moment
2,85 ± 0,1
aurkikuntza-data1947
parity-

decay modeintensity
β (β decay)99.982%
ϵ (electron capture)0.018%

155Eu

masa-zenbaki155
neutron number92
atomo-masa erlatibo
154,922899847 ± 0,000001343 Da
g-factor
0,6064 ± 0,0008
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,742 ± 0,008 y
spin5/2
nuclear quadrupole moment
2,5 ± 0,3
aurkikuntza-data1947
parity+

decay modeintensity
β (β decay)100%

156Eu

masa-zenbaki156
neutron number93
atomo-masa erlatibo
155,924762976 ± 0,000003791 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
15,19 ± 0,08 d
spin0
nuclear quadrupole moment
0
aurkikuntza-data1947
parity+

decay modeintensity
β (β decay)100%

157Eu

masa-zenbaki157
neutron number94
atomo-masa erlatibo
156,925432556 ± 0,000004545 Da
g-factor
0,6 ± 0,008
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
15,18 ± 0,03 h
spin5/2
nuclear quadrupole moment
2,6 ± 0,3
aurkikuntza-data1951
parity+

decay modeintensity
β (β decay)100%

158Eu

masa-zenbaki158
neutron number95
atomo-masa erlatibo
157,927782192 ± 0,000002181 Da
g-factor
1,44 ± 0,02
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
45,9 ± 0,2 m
spin1
nuclear quadrupole moment
0,66 ± 0,14
aurkikuntza-data1951
parity-

decay modeintensity
β (β decay)100%

159Eu

masa-zenbaki159
neutron number96
atomo-masa erlatibo
158,929099512 ± 0,000004637 Da
g-factor
0,552 ± 0,008
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
18,1 ± 0,1 m
spin5/2
nuclear quadrupole moment
2,7 ± 0,3
aurkikuntza-data1961
parity+

decay modeintensity
β (β decay)100%

160Eu

masa-zenbaki160
neutron number97
atomo-masa erlatibo
159,931836982 ± 0,00000097 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
42,6 ± 0,5 s
spin5
nuclear quadrupole moment
aurkikuntza-data1973
parity-

decay modeintensity
β (β decay)100%

161Eu

masa-zenbaki161
neutron number98
atomo-masa erlatibo
160,933663991 ± 0,000011164 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
26,2 ± 2,3 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data1986
parity+

decay modeintensity
β (β decay)100%

162Eu

masa-zenbaki162
neutron number99
atomo-masa erlatibo
161,936958329 ± 0,00000141 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin1
nuclear quadrupole moment
aurkikuntza-data1987
parity+

decay modeintensity
β (β decay)100%

163Eu

masa-zenbaki163
neutron number100
atomo-masa erlatibo
162,93926551 ± 0,00000097 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
7,7 ± 0,4 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data2007
parity+

decay modeintensity
β (β decay)100%

164Eu

masa-zenbaki164
neutron number101
atomo-masa erlatibo
163,942852943 ± 0,000002219 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,16 ± 0,19 s
spin3
nuclear quadrupole moment
aurkikuntza-data2007
parity-

decay modeintensity
β (β decay)100%

165Eu

masa-zenbaki165
neutron number102
atomo-masa erlatibo
164,94554007 ± 0,000005596 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,53 ± 0,25 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data2007
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

166Eu

masa-zenbaki166
neutron number103
atomo-masa erlatibo
165,949813 ± 0,000107 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,24 ± 0,12 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data2007
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

167Eu

masa-zenbaki167
neutron number104
atomo-masa erlatibo
166,953011 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,33 ± 0,51 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data2012
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

168Eu

masa-zenbaki168
neutron number105
atomo-masa erlatibo
167,957863 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
200 ± 100 ms
spin6
nuclear quadrupole moment
aurkikuntza-data2012
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

169Eu

masa-zenbaki169
neutron number106
atomo-masa erlatibo
168,961717 ± 0,000537 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin5/2
nuclear quadrupole moment
aurkikuntza-data2018
parity+

decay modeintensity
β (β decay)

170Eu

masa-zenbaki170
neutron number107
atomo-masa erlatibo
169,96687 ± 0,000537 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin
nuclear quadrupole moment
aurkikuntza-data
parity

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Eu-Block

historia

aurkitzailea edo asmatzaileaEugène Demarçay
aurkikuntzaren lekuaFrance
aurkikuntza-data1901
etimologiaNamed for the continent of Europe.
pronunciationyoo-RO-pi-em (ingelesa)

source

Abundance
Abundance in Earth's crust
natural abundance (ozeano)
0,00000013 mg/L
natural abundance (gizakiaren gorputza)
natural abundance (Meteoroide)
0,0000059 %
natural abundance (Eguzkia)
0,00000005 %
Abundance in Universe
0,00000005 %

Nuclear Screening Constants

1s1.2391
2p4.282
2s16.5292
3d13.7472
3p19.716
3s20.1318
4d34.0592
4f38.68
4p31.1252
4s30.132
5p46.445
5s44.41
6s54.8784