Yevropiy

Yevropiy (Eu)

chemical element with atomic number of 63
Atomic Number63
Atomic Weight151.964
mass number153
Group
Period6
Blockf
Proton63 p+
Neytron90 n0
Elektron63 e-
Animated Bohr model of Eu (Yevropiy)

Fizik Xossa

Atom Radiusi
185 pm
Molyar hajm
Kovalentlik Radiusi
168 pm
Metallic Radius
Ion radiuslar
117 pm
Crystal Radius
131 pm
Van der Waals radius
235 pm
density
5,24 g/cm³
Atomic Radii Of The Elements: Yevropiy0102030405060708090100110120130140150160170180190200210220230240pmAtom RadiusiKovalentlik RadiusiMetallic RadiusVan der Waals radius

Chemical Property

energiya
proton affinity
electron affinity
ionization energy
5,670385 eV/particle
ionization energy of Eu (Yevropiy)
Solishtirma qaynash issiqligi
176 kJ/mol
solishtirma erish issiqligi
standard enthalpy of formation
177,4 kJ/mol
Elektron
Ion asboblar2, 8, 18, 25, 8, 2
Bohr model: Eu (Yevropiy)
valence electron2
Lewis structure: Eu (Yevropiy)
electron configuration[Xe] 4f7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f7 6s2
Enhanced Bohr model of Eu (Yevropiy)
Orbital Diagram of Eu (Yevropiy)
Oksidlanish darajasi0, 2, 3
Elektrmanfiylik
Electrophilicity Index
1,1104548254099753 eV/particle
fundamental state of matter
phase of matterSolid
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
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
typeConductor
electrical conductivity
1,1 MS/m
electrical resistivity
0,0000009 m Ω
superconductivity
1,8 K
Magnetizm
typeparamagnetic
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 StructureBody Centered Cubic (BCC)
Kristall panjara davri
4,61 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Qattiqlik
bulk modulus
8,3 GPa
shear modulus
7,9 GPa
Yung moduli
18 GPa
Poisson's ratio
0,15
Tovush tezligi
klassifikatsiya
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number17
Mendeleev Number25
Pettifor Number18
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
184 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
4 570
Neutron Mass Absorption
0,6
Atom kvant sonlari8S7/2
space group229 (Im_3m)

Isotopes of Europium

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

130Eu

mass number130
neutron number67
Nisbiy atom massa
129,964022 ± 0,000578 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1 ± 0,4 ms
spin1
nuclear quadrupole moment
time of discovery or invention2004
parity+

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

131Eu

mass number131
neutron number68
Nisbiy atom massa
130,957634 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
17,8 ± 1,9 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention1998
parity+

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

132Eu

mass number132
neutron number69
Nisbiy atom massa
131,954696 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin1
nuclear quadrupole moment
time of discovery or invention
parity+

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

133Eu

mass number133
neutron number70
Nisbiy atom massa
132,94929 ± 0,00032 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin5/2
nuclear quadrupole moment
time of discovery or invention
parity+

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

134Eu

mass number134
neutron number71
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 invention1989
parity

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

135Eu

mass number135
neutron number72
Nisbiy atom massa
134,94187 ± 0,00021 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,5 ± 0,2 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1989
parity+

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

136Eu

mass number136
neutron number73
Nisbiy atom massa
135,93962 ± 0,00021 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
3,3 ± 0,3 s
spin6
nuclear quadrupole moment
time of discovery or invention1987
parity+

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

137Eu

mass number137
neutron number74
Nisbiy atom massa
136,935430719 ± 0,0000047 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
8,4 ± 0,5 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1982
parity+

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

138Eu

mass number138
neutron number75
Nisbiy atom massa
137,933709 ± 0,00003 Da
g-factor
0,88333333333333 ± 0,11666666666667
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin2
nuclear quadrupole moment
time of discovery or invention1982
parity-

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

139Eu

mass number139
neutron number76
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
spin11/2
nuclear quadrupole moment
time of discovery or invention1975
parity

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

140Eu

mass number140
neutron number77
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
spin1
nuclear quadrupole moment
time of discovery or invention1982
parity+

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

141Eu

mass number141
neutron number78
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
spin5/2
nuclear quadrupole moment
0,85 ± 0,04
time of discovery or invention1977
parity+

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

142Eu

mass number142
neutron number79
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
spin1
nuclear quadrupole moment
0,12 ± 0,05
time of discovery or invention1966
parity+

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

143Eu

mass number143
neutron number80
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
spin5/2
nuclear quadrupole moment
0,51 ± 0,03
time of discovery or invention1965
parity+

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

144Eu

mass number144
neutron number81
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
spin1
nuclear quadrupole moment
0,1 ± 0,03
time of discovery or invention1965
parity+

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

145Eu

mass number145
neutron number82
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
spin5/2
nuclear quadrupole moment
0,29 ± 0,02
time of discovery or invention1951
parity+

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

146Eu

mass number146
neutron number83
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
spin4
nuclear quadrupole moment
-0,18 ± 0,06
time of discovery or invention1957
parity-

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

147Eu

mass number147
neutron number84
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
spin5/2
nuclear quadrupole moment
0,55 ± 0,03
time of discovery or invention1951
parity+

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

148Eu

mass number148
neutron number85
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
spin5
nuclear quadrupole moment
0,35 ± 0,06
time of discovery or invention1951
parity-

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

149Eu

mass number149
neutron number86
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
spin5/2
nuclear quadrupole moment
0,75 ± 0,02
time of discovery or invention1959
parity+

decay modeintensity
ϵ (electron capture)100%

150Eu

mass number150
neutron number87
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
spin5
nuclear quadrupole moment
1,13 ± 0,05
time of discovery or invention1950
parity-

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

151Eu

mass number151
neutron number88
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
spin5/2
nuclear quadrupole moment
0,903 ± 0,01
time of discovery or invention1933
parity+

decay modeintensity
α (α emission)100%

152Eu

mass number152
neutron number89
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
spin3
nuclear quadrupole moment
2,72 ± 0,03
time of discovery or invention1938
parity-

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

153Eu

mass number153
neutron number90
Nisbiy atom massa
152,921236789 ± 0,000001257 Da
g-factor
0,61176 ± 0,00044
natural abundance
52,19 ± 0,06
Radioaktivlikstable isotope
Yarim yemirilish davriNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
2,41 ± 0,02
time of discovery or invention1933
parity+

154Eu

mass number154
neutron number91
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
spin3
nuclear quadrupole moment
2,85 ± 0,1
time of discovery or invention1947
parity-

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

155Eu

mass number155
neutron number92
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
spin5/2
nuclear quadrupole moment
2,5 ± 0,3
time of discovery or invention1947
parity+

decay modeintensity
β (β decay)100%

156Eu

mass number156
neutron number93
Nisbiy atom massa
155,924762976 ± 0,000003791 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
15,19 ± 0,08 d
spin0
nuclear quadrupole moment
0
time of discovery or invention1947
parity+

decay modeintensity
β (β decay)100%

157Eu

mass number157
neutron number94
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
spin5/2
nuclear quadrupole moment
2,6 ± 0,3
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%

158Eu

mass number158
neutron number95
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
spin1
nuclear quadrupole moment
0,66 ± 0,14
time of discovery or invention1951
parity-

decay modeintensity
β (β decay)100%

159Eu

mass number159
neutron number96
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
spin5/2
nuclear quadrupole moment
2,7 ± 0,3
time of discovery or invention1961
parity+

decay modeintensity
β (β decay)100%

160Eu

mass number160
neutron number97
Nisbiy atom massa
159,931836982 ± 0,00000097 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
42,6 ± 0,5 s
spin5
nuclear quadrupole moment
time of discovery or invention1973
parity-

decay modeintensity
β (β decay)100%

161Eu

mass number161
neutron number98
Nisbiy atom massa
160,933663991 ± 0,000011164 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
26,2 ± 2,3 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1986
parity+

decay modeintensity
β (β decay)100%

162Eu

mass number162
neutron number99
Nisbiy atom massa
161,936958329 ± 0,00000141 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin1
nuclear quadrupole moment
time of discovery or invention1987
parity+

decay modeintensity
β (β decay)100%

163Eu

mass number163
neutron number100
Nisbiy atom massa
162,93926551 ± 0,00000097 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
7,7 ± 0,4 s
spin5/2
nuclear quadrupole moment
time of discovery or invention2007
parity+

decay modeintensity
β (β decay)100%

164Eu

mass number164
neutron number101
Nisbiy atom massa
163,942852943 ± 0,000002219 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
4,16 ± 0,19 s
spin3
nuclear quadrupole moment
time of discovery or invention2007
parity-

decay modeintensity
β (β decay)100%

165Eu

mass number165
neutron number102
Nisbiy atom massa
164,94554007 ± 0,000005596 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
2,53 ± 0,25 s
spin5/2
nuclear quadrupole moment
time of discovery or invention2007
parity+

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

166Eu

mass number166
neutron number103
Nisbiy atom massa
165,949813 ± 0,000107 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,24 ± 0,12 s
spin0
nuclear quadrupole moment
0
time of discovery or invention2007
parity-

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

167Eu

mass number167
neutron number104
Nisbiy atom massa
166,953011 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,33 ± 0,51 s
spin5/2
nuclear quadrupole moment
time of discovery or invention2012
parity+

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

168Eu

mass number168
neutron number105
Nisbiy atom massa
167,957863 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
200 ± 100 ms
spin6
nuclear quadrupole moment
time of discovery or invention2012
parity-

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

169Eu

mass number169
neutron number106
Nisbiy atom massa
168,961717 ± 0,000537 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin5/2
nuclear quadrupole moment
time of discovery or invention2018
parity+

decay modeintensity
β (β decay)

170Eu

mass number170
neutron number107
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 modeintensity
β (β decay)
β n (β-delayed neutron emission)
Eu-Block

tarix

discoverer or inventorEugène Demarçay
location of discoveryFrance
time of discovery or invention1901
EtimologiyaNamed for the continent of Europe.
pronunciationyoo-RO-pi-em (inglizcha)

source

Abundance
Abundance in Earth's crust
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

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