Yevropiy (Eu)

chemical element with atomic number of 63

Atomic Number	63
Atomic Weight	151.964
mass number	153

Group
Period	6
Block	f

Proton	63 p⁺
Neytron	90 n⁰
Elektron	63 e^-

Fizik Xossa

Atom Radiusi	185 pm 280 pm
Molyar hajm	28,9 cm³/mol
Kovalentlik Radiusi	168 pm 134 pm 198 pm
Metallic Radius
Ion radiuslar	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 Waals radius	235 pm 294 pm 349,3 pm
density	5,24 g/cm³ 5 130 kg/m³

Chemical Property

energiya

proton affinity
electron affinity	0,864 eV/particle
ionization energy	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

Solishtirma qaynash issiqligi	176 kJ/mol
solishtirma erish issiqligi
standard enthalpy of formation	177,4 kJ/mol
Elektron

Ion asboblar	2, 8, 18, 25, 8, 2

valence electron	2 ⓘ

electron configuration	[Xe] 4f⁷ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f⁷ 6s²

Oksidlanish darajasi	0, 2, 3
Elektrmanfiylik	0.189935
Electrophilicity Index	1,1104548254099753 eV/particle
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	1 802,15 K
Melting Point	1 095,15 K
critical pressure
critical temperature
triple point
appearance
Rang	Silver #ff1493 #61ffc7 #61ffc7
appearance
refractive index
thermodynamic material property
Thermal Conductivity	13,9 W/(m K)
Issiqlikdan kengayish	0,000035 1/K
molar heat capacity	27,66 J/(mol K)
Specific Heat Capacity	0,182 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	1,1 MS/m
electrical resistivity	0,0000009 Ω*m
superconductivity	1,8 K
Magnetizm
type	paramagnetic
magnetic susceptibility (Mass)	0,000000276 m³/Kg
magnetic susceptibility (Molar)	0,000000041942 m³/mol
magnetic susceptibility (Volume)	0,0014473
magnetic ordering
Kyuri nuqtasi
Néel temperature	90,5 K
Tuzilma
Crystal Structure	Body Centered Cubic (BCC)
Kristall panjara davri	4,61 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
Qattiqlik	167 MPa
bulk modulus	8,3 GPa
shear modulus	7,9 GPa
Yung moduli	18 GPa
Poisson's ratio	0,15
Tovush tezligi
klassifikatsiya
Category	Lanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number	17
Mendeleev Number	25
Pettifor Number	18
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	184 ± 20 a₀
C6 Dispersion Coefficient	2 940 a₀
allotrope
Neutron cross section	4 570
Neutron Mass Absorption	0,6
Atom kvant sonlari	8S7/2
space group	229 (Im_3m)

Isotopes of Europium

Stable Isotopes	1
Unstable Isotopes	40
Natural Isotopes	2

¹³⁰Eu

mass number	130
neutron number	67
Nisbiy Atom Massa	129,964022 ± 0,000578 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	1 ± 0,4 ms
spin	1
nuclear quadrupole moment
time of discovery or invention	2004
parity	+

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

¹³¹Eu

mass number	131
neutron number	68
Nisbiy Atom Massa	130,957634 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	17,8 ± 1,9 ms
spin	3/2
nuclear quadrupole moment
time of discovery or invention	1998
parity	+

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

¹³²Eu

mass number	132
neutron number	69
Nisbiy Atom Massa	131,954696 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	1
nuclear quadrupole moment
time of discovery or invention
parity	+

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

¹³³Eu

mass number	133
neutron number	70
Nisbiy Atom Massa	132,94929 ± 0,00032 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	5/2
nuclear quadrupole moment
time of discovery or invention
parity	+

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

¹³⁴Eu

mass number	134
neutron number	71
Nisbiy Atom Massa	133,946537 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	500 ± 200 ms
spin
nuclear quadrupole moment
time of discovery or invention	1989
parity

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

¹³⁵Eu

mass number	135
neutron number	72
Nisbiy Atom Massa	134,94187 ± 0,00021 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	1,5 ± 0,2 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1989
parity	+

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

¹³⁶Eu

mass number	136
neutron number	73
Nisbiy Atom Massa	135,93962 ± 0,00021 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	3,3 ± 0,3 s
spin	6
nuclear quadrupole moment
time of discovery or invention	1987
parity	+

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

¹³⁷Eu

mass number	137
neutron number	74
Nisbiy Atom Massa	136,935430719 ± 0,0000047 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	8,4 ± 0,5 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1982
parity	+

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

¹³⁸Eu

mass number	138
neutron number	75
Nisbiy Atom Massa	137,933709 ± 0,00003 Da
g-factor	0,88333333333333 ± 0,11666666666667
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	2
nuclear quadrupole moment
time of discovery or invention	1982
parity	-

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

¹³⁹Eu

mass number	139
neutron number	76
Nisbiy Atom Massa	138,929792307 ± 0,000014117 Da
g-factor	1,1090909090909 ± 0,14545454545455
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	17,9 ± 0,6 s
spin	11/2
nuclear quadrupole moment
time of discovery or invention	1975
parity

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

¹⁴⁰Eu

mass number	140
neutron number	77
Nisbiy Atom Massa	139,928087633 ± 0,000055328 Da
g-factor	1,362 ± 0,013
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	1,51 ± 0,02 s
spin	1
nuclear quadrupole moment
time of discovery or invention	1982
parity	+

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

¹⁴¹Eu

mass number	141
neutron number	78
Nisbiy Atom Massa	140,924931734 ± 0,000013568 Da
g-factor	1,3944 ± 0,0032
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	40,7 ± 0,7 s
spin	5/2
nuclear quadrupole moment	0,85 ± 0,04
time of discovery or invention	1977
parity	+

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

¹⁴²Eu

mass number	142
neutron number	79
Nisbiy Atom Massa	141,923446719 ± 0,000032268 Da
g-factor	1,532 ± 0,019
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	2,36 ± 0,1 s
spin	1
nuclear quadrupole moment	0,12 ± 0,05
time of discovery or invention	1966
parity	+

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

¹⁴³Eu

mass number	143
neutron number	80
Nisbiy Atom Massa	142,920298678 ± 0,000011793 Da
g-factor	1,4656 ± 0,0032
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	2,59 ± 0,02 m
spin	5/2
nuclear quadrupole moment	0,51 ± 0,03
time of discovery or invention	1965
parity	+

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

¹⁴⁴Eu

mass number	144
neutron number	81
Nisbiy Atom Massa	143,918819481 ± 0,00001158 Da
g-factor	1,888 ± 0,013
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	10,2 ± 0,1 s
spin	1
nuclear quadrupole moment	0,1 ± 0,03
time of discovery or invention	1965
parity	+

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

¹⁴⁵Eu

mass number	145
neutron number	82
Nisbiy Atom Massa	144,916272659 ± 0,000003285 Da
g-factor	1,5932 ± 0,0028
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	5,93 ± 0,04 d
spin	5/2
nuclear quadrupole moment	0,29 ± 0,02
time of discovery or invention	1951
parity	+

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

¹⁴⁶Eu

mass number	146
neutron number	83
Nisbiy Atom Massa	145,917210852 ± 0,000006451 Da
g-factor	0,3555 ± 0,00275
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	4,61 ± 0,03 d
spin	4
nuclear quadrupole moment	-0,18 ± 0,06
time of discovery or invention	1957
parity	-

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

¹⁴⁷Eu

mass number	147
neutron number	84
Nisbiy Atom Massa	146,91675244 ± 0,000002758 Da
g-factor	1,486 ± 0,0032
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	24,1 ± 0,6 d
spin	5/2
nuclear quadrupole moment	0,55 ± 0,03
time of discovery or invention	1951
parity	+

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

¹⁴⁸Eu

mass number	148
neutron number	85
Nisbiy Atom Massa	147,918091288 ± 0,000010693 Da
g-factor	0,4668 ± 0,002
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	54,5 ± 0,5 d
spin	5
nuclear quadrupole moment	0,35 ± 0,06
time of discovery or invention	1951
parity	-

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

¹⁴⁹Eu

mass number	149
neutron number	86
Nisbiy Atom Massa	148,917936875 ± 0,00000419 Da
g-factor	1,4224 ± 0,0024
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	93,1 ± 0,4 d
spin	5/2
nuclear quadrupole moment	0,75 ± 0,02
time of discovery or invention	1959
parity	+

decay mode	intensity
ϵ (electron capture)	100%

¹⁵⁰Eu

mass number	150
neutron number	87
Nisbiy Atom Massa	149,919707092 ± 0,000006688 Da
g-factor	0,5404 ± 0,0022
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	36,9 ± 0,9 y
spin	5
nuclear quadrupole moment	1,13 ± 0,05
time of discovery or invention	1950
parity	-

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

¹⁵¹Eu

mass number	151
neutron number	88
Nisbiy Atom Massa	150,919856606 ± 0,000001251 Da
g-factor	1,3854 ± 0,001
natural abundance	47,81 ± 0,06
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	4,6 ± 1,2 Ey
spin	5/2
nuclear quadrupole moment	0,903 ± 0,01
time of discovery or invention	1933
parity	+

decay mode	intensity
α (α emission)	100%

¹⁵²Eu

mass number	152
neutron number	89
Nisbiy Atom Massa	151,92175098 ± 0,000001252 Da
g-factor	-0,64513333333333 ± 0,00056666666666667
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	13,517 ± 0,006 y
spin	3
nuclear quadrupole moment	2,72 ± 0,03
time of discovery or invention	1938
parity	-

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

¹⁵³Eu

mass number	153
neutron number	90
Nisbiy Atom Massa	152,921236789 ± 0,000001257 Da
g-factor	0,61176 ± 0,00044
natural abundance	52,19 ± 0,06
Radioaktivlik	stable isotope
Yarim yemirilish davri	Not Radioactive ☢️
spin	5/2
nuclear quadrupole moment	2,41 ± 0,02
time of discovery or invention	1933
parity	+

¹⁵⁴Eu

mass number	154
neutron number	91
Nisbiy Atom Massa	153,922985699 ± 0,000001275 Da
g-factor	-0,66666666666667 ± 0,002
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	8,592 ± 0,003 y
spin	3
nuclear quadrupole moment	2,85 ± 0,1
time of discovery or invention	1947
parity	-

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

¹⁵⁵Eu

mass number	155
neutron number	92
Nisbiy Atom Massa	154,922899847 ± 0,000001343 Da
g-factor	0,6064 ± 0,0008
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	4,742 ± 0,008 y
spin	5/2
nuclear quadrupole moment	2,5 ± 0,3
time of discovery or invention	1947
parity	+

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

¹⁵⁶Eu

mass number	156
neutron number	93
Nisbiy Atom Massa	155,924762976 ± 0,000003791 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	15,19 ± 0,08 d
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1947
parity	+

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

¹⁵⁷Eu

mass number	157
neutron number	94
Nisbiy Atom Massa	156,925432556 ± 0,000004545 Da
g-factor	0,6 ± 0,008
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	15,18 ± 0,03 h
spin	5/2
nuclear quadrupole moment	2,6 ± 0,3
time of discovery or invention	1951
parity	+

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

¹⁵⁸Eu

mass number	158
neutron number	95
Nisbiy Atom Massa	157,927782192 ± 0,000002181 Da
g-factor	1,44 ± 0,02
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	45,9 ± 0,2 m
spin	1
nuclear quadrupole moment	0,66 ± 0,14
time of discovery or invention	1951
parity	-

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

¹⁵⁹Eu

mass number	159
neutron number	96
Nisbiy Atom Massa	158,929099512 ± 0,000004637 Da
g-factor	0,552 ± 0,008
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	18,1 ± 0,1 m
spin	5/2
nuclear quadrupole moment	2,7 ± 0,3
time of discovery or invention	1961
parity	+

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

¹⁶⁰Eu

mass number	160
neutron number	97
Nisbiy Atom Massa	159,931836982 ± 0,00000097 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	42,6 ± 0,5 s
spin	5
nuclear quadrupole moment
time of discovery or invention	1973
parity	-

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

¹⁶¹Eu

mass number	161
neutron number	98
Nisbiy Atom Massa	160,933663991 ± 0,000011164 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	26,2 ± 2,3 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1986
parity	+

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

¹⁶²Eu

mass number	162
neutron number	99
Nisbiy Atom Massa	161,936958329 ± 0,00000141 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	1
nuclear quadrupole moment
time of discovery or invention	1987
parity	+

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

¹⁶³Eu

mass number	163
neutron number	100
Nisbiy Atom Massa	162,93926551 ± 0,00000097 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	7,7 ± 0,4 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2007
parity	+

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

¹⁶⁴Eu

mass number	164
neutron number	101
Nisbiy Atom Massa	163,942852943 ± 0,000002219 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	4,16 ± 0,19 s
spin	3
nuclear quadrupole moment
time of discovery or invention	2007
parity	-

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

¹⁶⁵Eu

mass number	165
neutron number	102
Nisbiy Atom Massa	164,94554007 ± 0,000005596 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	2,53 ± 0,25 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2007
parity	+

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

¹⁶⁶Eu

mass number	166
neutron number	103
Nisbiy Atom Massa	165,949813 ± 0,000107 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	1,24 ± 0,12 s
spin	0
nuclear quadrupole moment	0
time of discovery or invention	2007
parity	-

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

¹⁶⁷Eu

mass number	167
neutron number	104
Nisbiy Atom Massa	166,953011 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	1,33 ± 0,51 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2012
parity	+

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

¹⁶⁸Eu

mass number	168
neutron number	105
Nisbiy Atom Massa	167,957863 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	200 ± 100 ms
spin	6
nuclear quadrupole moment
time of discovery or invention	2012
parity	-

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

¹⁶⁹Eu

mass number	169
neutron number	106
Nisbiy Atom Massa	168,961717 ± 0,000537 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2018
parity	+

decay mode	intensity
β⁻ (β⁻ decay)

¹⁷⁰Eu

mass number	170
neutron number	107
Nisbiy Atom Massa	169,96687 ± 0,000537 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin
nuclear quadrupole moment
time of discovery or invention
parity

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

tarix

discoverer or inventor	Eugène Demarçay
location of discovery	France
time of discovery or invention	1901
Etimologiya	Named for the continent of Europe.
pronunciation	yoo-RO-pi-em (inglizcha)

source

Abundance
Abundance in Earth's crust	2 mg/kg
natural abundance (Okean)	0,00000013 mg/L
natural abundance (Inson tanasi)
natural abundance (Meteoroid)	0,0000059 %
natural abundance (Quyosh)	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

Yevropiy on ChemicalAid

Australian Educational Vocabulary ID	scot/3518
CAB ID	154848
CAS qayd raqami	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
Encyclopedia of China ID (Second Edition)	243832
Encyclopædia Britannica Online ID	science/europium
Encyclopædia Universalis ID	europium
Freebase ID	/m/028bf0d
French Vikidia ID	Europium
GND identifikatori	4153210-7
Gran Enciclopèdia Catalana ID	0107121
Great Russian Encyclopedia Online ID	1974896
InChI	InChI=1S/Eu
InChIKey	OGPBJKLSAFTDLK-UHFFFAOYSA-N
Interlingual Index ID	i113931
KBpedia ID	Europium
LCCN identifikatori	sh85045863
MeSH descriptor ID	D005063
NALT ID	38725
Namuwiki ID	유로퓸
National Library of Israel J9U ID	987007560305105171
OmegaWiki Defined Meaning	158490
OpenAlex ID	C502696234
PubChem CID	23981
RxNorm ID	1311484
Store norske leksikon ID	europium
Treccani ID	europio
UNII	444W947O8O
USGS Thesaurus ID	1450
WordNet 3.1 Synset ID	14661354-n
ZVG number	7630

Yevropiy (Eu)

Fizik Xossa

Chemical Property

other

Isotopes of Europium

130Eu

131Eu

132Eu

133Eu

134Eu

135Eu

136Eu

137Eu

138Eu

139Eu

140Eu

141Eu

142Eu

143Eu

144Eu

145Eu

146Eu

147Eu

148Eu

149Eu

150Eu

151Eu

152Eu

153Eu

154Eu

155Eu

156Eu

157Eu

158Eu

159Eu

160Eu

161Eu

162Eu

163Eu

164Eu

165Eu

166Eu

167Eu

168Eu

169Eu

170Eu

tarix

source

Nuclear Screening Constants

¹³⁰Eu

¹³¹Eu

¹³²Eu

¹³³Eu

¹³⁴Eu

¹³⁵Eu

¹³⁶Eu

¹³⁷Eu

¹³⁸Eu

¹³⁹Eu

¹⁴⁰Eu

¹⁴¹Eu

¹⁴²Eu

¹⁴³Eu

¹⁴⁴Eu

¹⁴⁵Eu

¹⁴⁶Eu

¹⁴⁷Eu

¹⁴⁸Eu

¹⁴⁹Eu

¹⁵⁰Eu

¹⁵¹Eu

¹⁵²Eu

¹⁵³Eu

¹⁵⁴Eu

¹⁵⁵Eu

¹⁵⁶Eu

¹⁵⁷Eu

¹⁵⁸Eu

¹⁵⁹Eu

¹⁶⁰Eu

¹⁶¹Eu

¹⁶²Eu

¹⁶³Eu

¹⁶⁴Eu

¹⁶⁵Eu

¹⁶⁶Eu

¹⁶⁷Eu

¹⁶⁸Eu

¹⁶⁹Eu

¹⁷⁰Eu