Europium (Eu)

grundämne

Atomnummer	63
Atommassa	151.964
masstal	153

Grupp
Period	6
Block	f

Protoner	63 p⁺
Neutroner	90 n⁰
Electrons	63 e^-

Animated Bohrs atommodell of Eu (Europium)

Egenskaper

fysisk egenskap
atomradie	185 pm 280 pm
molvolym	28,9 cm³/mol
kovalent radie	168 pm 134 pm 198 pm
Metallic Radius
ionic radius	117 pm 120 pm 125 pm 130 pm 135 pm 94,7 pm 101 pm 106,6 pm 112 pm
Crystal Radius	131 pm 134 pm 139 pm 144 pm 149 pm 108,7 pm 115 pm 120,6 pm 126 pm
Van der Waalsradie	235 pm 294 pm 349,3 pm
densitet	5,24 g/cm³ 5 130 kg/m³
energi
proton affinity
Elektronaffinitet	0,864 eV/particle
joniseringsenergi	5,670385 eV/particle 11,241 eV/particle 24,9 eV/particle 42,7 eV/particle 63 eV/particle 88 eV/particle 105 eV/particle 120 eV/particle 144 eV/particle 161 eV/particle 183 eV/particle 213 eV/particle 243 eV/particle 263 eV/particle 281 eV/particle 311 eV/particle 344,4 eV/particle 518 eV/particle 553 eV/particle 590 eV/particle 630 eV/particle 667 eV/particle 709 eV/particle 755 eV/particle 795 eV/particle 838 eV/particle 879 eV/particle 1 037 eV/particle 1 078 eV/particle 1 124 eV/particle 1 167 eV/particle 1 249 eV/particle 1 296 eV/particle 1 406 eV/particle 1 456,06 eV/particle 2 495 eV/particle 2 591 eV/particle 2 697 eV/particle 2 807 eV/particle 2 914 eV/particle 3 022 eV/particle 3 168 eV/particle 3 279 eV/particle 3 398 eV/particle 3 510 eV/particle 3 823 eV/particle 3 921 eV/particle 4 031 eV/particle 4 131 eV/particle 4 400 eV/particle 4 510 eV/particle 4 729 eV/particle 4 838 eV/particle 10 880 eV/particle 11 153 eV/particle 11 457 eV/particle 11 739 eV/particle 12 718 eV/particle 13 050 eV/particle 13 462 eV/particle 13 738,58 eV/particle 55 865,9 eV/particle 57 120,6 eV/particle

ångbildningsvärme	176 kJ/mol
smältvärme
Bildningsentalpi	177,4 kJ/mol
Electrons
electron shell	2, 8, 18, 25, 8, 2

valenselektron	2

elektronkonfiguration	[Xe] 4f⁷ 6s²

oxidationstal	0, 2, 3
elektronegativitet	0.189935
Electrophilicity	1,1104548254099753 eV/particle
Phases
aggregationstillstånd	Fast
Gas Phase
Kokpunkt	1 802,15 K
Smältpunkt	1 095,15 K
critical pressure
critical temperature
trippelpunkt
Visual
färg	Silver #ff1493 #61ffc7 #61ffc7
appearance
Brytningsindex
materialegenskap
Värmeledningsförmåga	13,9 W/(m K)
termisk expansion	0,000035 1/K
molar heat capacity	27,66 J/(mol K)
Specifik värmekapacitet	0,182 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
elektrisk konduktivitet	1,1 MS/m
resistivitet	0,0000009 m Ω
supraledare	1,8 K
magnetism
type	paramagnetic
magnetisk susceptibilitet (Mass)	0,000000276 m³/Kg
magnetisk susceptibilitet (Molar)	0,000000041942 m³/mol
magnetisk susceptibilitet (Volume)	0,0014473
magnetic ordering
Curiepunkten
Néel temperature	90,5 K
Structure
Kristallstruktur	Rymdcentrerat kubisk (BCC)
Gitterkonstant	4,61 Å
Lattice Angles	π/2, π/2, π/2
mekanisk materialegenskap
hårdhet	167 MPa
Kompressibilitet	8,3 GPa
skjuvmodul	7,9 GPa
Young's modulus	18 GPa
Poissons konstant	0,15
ljudhastighet
klassificering
Kategori	Lantanoider, Lanthanides
CAS Group
IUPAC Group
Glawe Number	17
Mendeleev Number	25
Pettifor Number	18
Geochemical Class	rare earth & related
Goldschmidt classification	litophile
övrigt
Gas Basicity
Dipole Polarizability	184 ± 20 a₀
C6 Dispersion Coefficient	2 940 a₀
Allotropes
Träffyta	4 570
Neutron Mass Absorption	0,6
kvanttal	8S7/2
rymdgrupp	229 (Im_3m)

Europiumisotoper

Stabila isotoper	2
Instabila isotoper	39
Radioactive Isotopes	39

¹³⁰Eu

natural abundance	Radioactive ☢️
relative atomic mass	129,964022 ± 0,000578 Da
masstal	130
g-factor
Halveringstid	1 ± 0,4 ms
Spinn	1
nuclear quadrupole moment
upptäcktsdatum	2004
Paritet	+

¹³⁰Eu Decay Modes

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

¹³¹Eu

natural abundance	Radioactive ☢️
relative atomic mass	130,957634 ± 0,000429 Da
masstal	131
g-factor
Halveringstid	17,8 ± 1,9 ms
Spinn	3/2
nuclear quadrupole moment
upptäcktsdatum	1998
Paritet	+

¹³¹Eu Decay Modes

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

¹³²Eu

natural abundance	Radioactive ☢️
relative atomic mass	131,954696 ± 0,000429 Da
masstal	132
g-factor
Halveringstid
Spinn	1
nuclear quadrupole moment
upptäcktsdatum
Paritet	+

¹³²Eu Decay Modes

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

¹³³Eu

natural abundance	Radioactive ☢️
relative atomic mass	132,94929 ± 0,00032 Da
masstal	133
g-factor
Halveringstid
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum
Paritet	+

¹³³Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	%
β⁺ p (β⁺-delayed proton emission)	%

¹³⁴Eu

natural abundance	Radioactive ☢️
relative atomic mass	133,946537 ± 0,000322 Da
masstal	134
g-factor
Halveringstid	500 ± 200 ms
Spinn
nuclear quadrupole moment
upptäcktsdatum	1989
Paritet

¹³⁴Eu Decay Modes

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

¹³⁵Eu

natural abundance	Radioactive ☢️
relative atomic mass	134,94187 ± 0,00021 Da
masstal	135
g-factor
Halveringstid	1,5 ± 0,2 s
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	1989
Paritet	+

¹³⁵Eu Decay Modes

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

¹³⁶Eu

natural abundance	Radioactive ☢️
relative atomic mass	135,93962 ± 0,00021 Da
masstal	136
g-factor
Halveringstid	3,3 ± 0,3 s
Spinn	6
nuclear quadrupole moment
upptäcktsdatum	1987
Paritet	+

¹³⁶Eu Decay Modes

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

¹³⁷Eu

natural abundance	Radioactive ☢️
relative atomic mass	136,935430719 ± 0,0000047 Da
masstal	137
g-factor
Halveringstid	8,4 ± 0,5 s
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	1982
Paritet	+

¹³⁷Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁸Eu

natural abundance	Radioactive ☢️
relative atomic mass	137,933709 ± 0,00003 Da
masstal	138
g-factor	0,88333333333333 ± 0,11666666666667
Halveringstid
Spinn	2
nuclear quadrupole moment
upptäcktsdatum	1982
Paritet	-

¹³⁸Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	%

¹³⁹Eu

natural abundance	Radioactive ☢️
relative atomic mass	138,929792307 ± 0,000014117 Da
masstal	139
g-factor	1,1090909090909 ± 0,14545454545455
Halveringstid	17,9 ± 0,6 s
Spinn	11/2
nuclear quadrupole moment
upptäcktsdatum	1975
Paritet

¹³⁹Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁰Eu

natural abundance	Radioactive ☢️
relative atomic mass	139,928087633 ± 0,000055328 Da
masstal	140
g-factor	1,362 ± 0,013
Halveringstid	1,51 ± 0,02 s
Spinn	1
nuclear quadrupole moment
upptäcktsdatum	1982
Paritet	+

¹⁴⁰Eu Decay Modes

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

¹⁴¹Eu

natural abundance	Radioactive ☢️
relative atomic mass	140,924931734 ± 0,000013568 Da
masstal	141
g-factor	1,3944 ± 0,0032
Halveringstid	40,7 ± 0,7 s
Spinn	5/2
nuclear quadrupole moment	0,85 ± 0,04
upptäcktsdatum	1977
Paritet	+

¹⁴¹Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴²Eu

natural abundance	Radioactive ☢️
relative atomic mass	141,923446719 ± 0,000032268 Da
masstal	142
g-factor	1,532 ± 0,019
Halveringstid	2,36 ± 0,1 s
Spinn	1
nuclear quadrupole moment	0,12 ± 0,05
upptäcktsdatum	1966
Paritet	+

¹⁴²Eu Decay Modes

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

¹⁴³Eu

natural abundance	Radioactive ☢️
relative atomic mass	142,920298678 ± 0,000011793 Da
masstal	143
g-factor	1,4656 ± 0,0032
Halveringstid	2,59 ± 0,02 m
Spinn	5/2
nuclear quadrupole moment	0,51 ± 0,03
upptäcktsdatum	1965
Paritet	+

¹⁴³Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁴Eu

natural abundance	Radioactive ☢️
relative atomic mass	143,918819481 ± 0,00001158 Da
masstal	144
g-factor	1,888 ± 0,013
Halveringstid	10,2 ± 0,1 s
Spinn	1
nuclear quadrupole moment	0,1 ± 0,03
upptäcktsdatum	1965
Paritet	+

¹⁴⁴Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁵Eu

natural abundance	Radioactive ☢️
relative atomic mass	144,916272659 ± 0,000003285 Da
masstal	145
g-factor	1,5932 ± 0,0028
Halveringstid	5,93 ± 0,04 d
Spinn	5/2
nuclear quadrupole moment	0,29 ± 0,02
upptäcktsdatum	1951
Paritet	+

¹⁴⁵Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁶Eu

natural abundance	Radioactive ☢️
relative atomic mass	145,917210852 ± 0,000006451 Da
masstal	146
g-factor	0,3555 ± 0,00275
Halveringstid	4,61 ± 0,03 d
Spinn	4
nuclear quadrupole moment	−0,18 ± 0,06
upptäcktsdatum	1957
Paritet	-

¹⁴⁶Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁷Eu

natural abundance	Radioactive ☢️
relative atomic mass	146,91675244 ± 0,000002758 Da
masstal	147
g-factor	1,486 ± 0,0032
Halveringstid	24,1 ± 0,6 d
Spinn	5/2
nuclear quadrupole moment	0,55 ± 0,03
upptäcktsdatum	1951
Paritet	+

¹⁴⁷Eu Decay Modes

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

¹⁴⁸Eu

natural abundance	Radioactive ☢️
relative atomic mass	147,918091288 ± 0,000010693 Da
masstal	148
g-factor	0,4668 ± 0,002
Halveringstid	54,5 ± 0,5 d
Spinn	5
nuclear quadrupole moment	0,35 ± 0,06
upptäcktsdatum	1951
Paritet	-

¹⁴⁸Eu Decay Modes

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

¹⁴⁹Eu

natural abundance	Radioactive ☢️
relative atomic mass	148,917936875 ± 0,00000419 Da
masstal	149
g-factor	1,4224 ± 0,0024
Halveringstid	93,1 ± 0,4 d
Spinn	5/2
nuclear quadrupole moment	0,75 ± 0,02
upptäcktsdatum	1959
Paritet	+

¹⁴⁹Eu Decay Modes

decay mode	Intensitet
ϵ (electron capture)	100%

¹⁵⁰Eu

natural abundance	Radioactive ☢️
relative atomic mass	149,919707092 ± 0,000006688 Da
masstal	150
g-factor	0,5404 ± 0,0022
Halveringstid	36,9 ± 0,9 y
Spinn	5
nuclear quadrupole moment	1,13 ± 0,05
upptäcktsdatum	1950
Paritet	-

¹⁵⁰Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵¹Eu

natural abundance	Radioactive ☢️ 47,81 ± 0,06
relative atomic mass	150,919856606 ± 0,000001251 Da
masstal	151
g-factor	1,3854 ± 0,001
Halveringstid	4,6 ± 1,2 Ey
Spinn	5/2
nuclear quadrupole moment	0,903 ± 0,01
upptäcktsdatum	1933
Paritet	+

¹⁵¹Eu Decay Modes

decay mode	Intensitet
α (α emission)	100%

¹⁵²Eu

natural abundance	Radioactive ☢️
relative atomic mass	151,92175098 ± 0,000001252 Da
masstal	152
g-factor	−0,64513333333333 ± 0,00056666666666667
Halveringstid	13,517 ± 0,006 y
Spinn	3
nuclear quadrupole moment	2,72 ± 0,03
upptäcktsdatum	1938
Paritet	-

¹⁵²Eu Decay Modes

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	72.08%
β⁻ (β⁻ decay)	27.92%

¹⁵³Eu

natural abundance	52,19 ± 0,06
relative atomic mass	152,921236789 ± 0,000001257 Da
masstal	153
g-factor	0,61176 ± 0,00044
Halveringstid
Spinn	5/2
nuclear quadrupole moment	2,41 ± 0,02
upptäcktsdatum	1933
Paritet	+

¹⁵⁴Eu

natural abundance	Radioactive ☢️
relative atomic mass	153,922985699 ± 0,000001275 Da
masstal	154
g-factor	−0,66666666666667 ± 0,002
Halveringstid	8,592 ± 0,003 y
Spinn	3
nuclear quadrupole moment	2,85 ± 0,1
upptäcktsdatum	1947
Paritet	-

¹⁵⁴Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	99.982%
ϵ (electron capture)	0.018%

¹⁵⁵Eu

natural abundance	Radioactive ☢️
relative atomic mass	154,922899847 ± 0,000001343 Da
masstal	155
g-factor	0,6064 ± 0,0008
Halveringstid	4,742 ± 0,008 y
Spinn	5/2
nuclear quadrupole moment	2,5 ± 0,3
upptäcktsdatum	1947
Paritet	+

¹⁵⁵Eu Decay Modes

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

¹⁵⁶Eu

natural abundance	Radioactive ☢️
relative atomic mass	155,924762976 ± 0,000003791 Da
masstal	156
g-factor	0
Halveringstid	15,19 ± 0,08 d
Spinn	0
nuclear quadrupole moment	0
upptäcktsdatum	1947
Paritet	+

¹⁵⁶Eu Decay Modes

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

¹⁵⁷Eu

natural abundance	Radioactive ☢️
relative atomic mass	156,925432556 ± 0,000004545 Da
masstal	157
g-factor	0,6 ± 0,008
Halveringstid	15,18 ± 0,03 h
Spinn	5/2
nuclear quadrupole moment	2,6 ± 0,3
upptäcktsdatum	1951
Paritet	+

¹⁵⁷Eu Decay Modes

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

¹⁵⁸Eu

natural abundance	Radioactive ☢️
relative atomic mass	157,927782192 ± 0,000002181 Da
masstal	158
g-factor	1,44 ± 0,02
Halveringstid	45,9 ± 0,2 m
Spinn	1
nuclear quadrupole moment	0,66 ± 0,14
upptäcktsdatum	1951
Paritet	-

¹⁵⁸Eu Decay Modes

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

¹⁵⁹Eu

natural abundance	Radioactive ☢️
relative atomic mass	158,929099512 ± 0,000004637 Da
masstal	159
g-factor	0,552 ± 0,008
Halveringstid	18,1 ± 0,1 m
Spinn	5/2
nuclear quadrupole moment	2,7 ± 0,3
upptäcktsdatum	1961
Paritet	+

¹⁵⁹Eu Decay Modes

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

¹⁶⁰Eu

natural abundance	Radioactive ☢️
relative atomic mass	159,931836982 ± 0,00000097 Da
masstal	160
g-factor
Halveringstid	42,6 ± 0,5 s
Spinn	5
nuclear quadrupole moment
upptäcktsdatum	1973
Paritet	-

¹⁶⁰Eu Decay Modes

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

¹⁶¹Eu

natural abundance	Radioactive ☢️
relative atomic mass	160,933663991 ± 0,000011164 Da
masstal	161
g-factor
Halveringstid	26,2 ± 2,3 s
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	1986
Paritet	+

¹⁶¹Eu Decay Modes

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

¹⁶²Eu

natural abundance	Radioactive ☢️
relative atomic mass	161,936958329 ± 0,00000141 Da
masstal	162
g-factor
Halveringstid
Spinn	1
nuclear quadrupole moment
upptäcktsdatum	1987
Paritet	+

¹⁶²Eu Decay Modes

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

¹⁶³Eu

natural abundance	Radioactive ☢️
relative atomic mass	162,93926551 ± 0,00000097 Da
masstal	163
g-factor
Halveringstid	7,7 ± 0,4 s
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	2007
Paritet	+

¹⁶³Eu Decay Modes

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

¹⁶⁴Eu

natural abundance	Radioactive ☢️
relative atomic mass	163,942852943 ± 0,000002219 Da
masstal	164
g-factor
Halveringstid	4,16 ± 0,19 s
Spinn	3
nuclear quadrupole moment
upptäcktsdatum	2007
Paritet	-

¹⁶⁴Eu Decay Modes

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

¹⁶⁵Eu

natural abundance	Radioactive ☢️
relative atomic mass	164,94554007 ± 0,000005596 Da
masstal	165
g-factor
Halveringstid	2,53 ± 0,25 s
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	2007
Paritet	+

¹⁶⁵Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%

¹⁶⁶Eu

natural abundance	Radioactive ☢️
relative atomic mass	165,949813 ± 0,000107 Da
masstal	166
g-factor	0
Halveringstid	1,24 ± 0,12 s
Spinn	0
nuclear quadrupole moment	0
upptäcktsdatum	2007
Paritet	-

¹⁶⁶Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%

¹⁶⁷Eu

natural abundance	Radioactive ☢️
relative atomic mass	166,953011 ± 0,000429 Da
masstal	167
g-factor
Halveringstid	1,33 ± 0,51 s
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	2012
Paritet	+

¹⁶⁷Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%

¹⁶⁸Eu

natural abundance	Radioactive ☢️
relative atomic mass	167,957863 ± 0,000429 Da
masstal	168
g-factor
Halveringstid	200 ± 100 ms
Spinn	6
nuclear quadrupole moment
upptäcktsdatum	2012
Paritet	-

¹⁶⁸Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%

¹⁶⁹Eu

natural abundance	Radioactive ☢️
relative atomic mass	168,961717 ± 0,000537 Da
masstal	169
g-factor
Halveringstid
Spinn	5/2
nuclear quadrupole moment
upptäcktsdatum	2018
Paritet	+

¹⁶⁹Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%

¹⁷⁰Eu

natural abundance
relative atomic mass	169,96687 ± 0,000537 Da
masstal	170
g-factor
Halveringstid
Spinn
nuclear quadrupole moment
upptäcktsdatum
Paritet

¹⁷⁰Eu Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

historia

upptäckare eller uppfinnare	Eugène Demarçay
fyndplats	France
upptäcktsdatum	1901
etymologi	Named for the continent of Europe.
uttal	yoo-RO-pi-em (engelska)

Sources

Förekomst
Abundance in Earth's crust	2 mg/kg
Abundance in Oceans	0,00000013 mg/L
Abundance in Human Body
Abundance in Meteor	0,0000059 %
Abundance in Sun	0,00000005 %
Abundance in Universe	0,00000005 %

Nuclear Screening Constants

1	s	1.2391
2	p	4.282
2	s	16.5292
3	d	13.7472
3	p	19.716
3	s	20.1318
4	d	34.0592
4	f	38.68
4	p	31.1252
4	s	30.132
5	p	46.445
5	s	44.41
6	s	54.8784

Europium on ChemicalAid

Australian Educational Vocabulary-ID	scot/3518
CAB ID	154848
CAS-nummer	7440-53-1
ChEBI-ID	32999
ChemSpider-ID	22417
DSSTOX compound identifier	DTXCID0047660
DSSTox substance ID	DTXSID3064695
Den Store Danske-ID	europium
ECHA Substance Infocard ID	100.028.328
Elhuyar ZTH ID	023875
Enciclopedia Treccani	europio
Encyclopædia Britannica Online-ID	science/europium
Encyclopædia Universalis-ID	europium
Freebase-ID	/m/028bf0d
Gran Enciclopèdia Catalana-ID	0107121
ILI-ID	i113931
InChI	InChI=1S/Eu
InChIKey	OGPBJKLSAFTDLK-UHFFFAOYSA-N
J9U-ID	987007560305105171
KBpedia-ID	Europium
MeSH-ID	D005063
NALT ID	38725
Namuwiki-ID	유로퓸
OmegaWiki Definierad Betydelse	158490
OpenAlex-ID	C502696234
PubChem-ID (CID)	23981
RxNorm-ID	1311484
Stora ryska encyklopedin-ID	1974896
Store norske leksikon-ID	europium
UNII	444W947O8O
Vikidia-ID (franska)	Europium
ZVG-nummer	7630
Zhongguo da baike quanshu-ID	243832
id-nummer i Deutsche Nationalbibliotheks katalog	4153210-7
id-nummer i USA:s kongressbiblioteks katalog	sh85045863
synset-ID på WordNet 3.1	14661354-n

Europium (Eu)

Egenskaper

Europiumisotoper

130Eu

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¹³⁰Eu

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