Europium

Europium (Eu)

chemical element with atomic number of 63
Atomic Number63
Atomic Weight151.964
Nombor jisim153
Group
Period6
Blockf
proton63 p+
neutron90 n0
Elektron63 e-
Animated Model Bohr of Eu (Europium)

Sifat Fizikal

Jejari Atom
185 pm
molar volume
Jejari kovalen
168 pm
Metallic Radius
ionic radius
117 pm
Crystal Radius
131 pm
Jejari van der Waals
235 pm
ketumpatan
5.24 g/cm³
Atomic Radii Of The Elements: Europium0102030405060708090100110120130140150160170180190200210220230240pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
Pertalian elektron
ionization energy
5.670385 eV/particle
ionization energy of Eu (Europium)
Entalpi pengewapan
176 kJ/mol
entalpi pelakuran
standard enthalpy of formation
177.4 kJ/mol
Elektron
Petala elektron2, 8, 18, 25, 8, 2
Model Bohr: Eu (Europium)
Elektron valens2
Teori ion Lewis: Eu (Europium)
tatarajah elektron[Xe] 4f7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f7 6s2
Enhanced Model Bohr of Eu (Europium)
Orbital Diagram of Eu (Europium)
Keadaan pengoksidaan0, 2, 3
Keelektronegatifan
Electrophilicity Index
1.1104548254099753 eV/particle
keadaan jirim asas
fasa jirimSolid
gaseous state of matter
Boiling Point
1,802.15 K
Melting Point
1,095.15 K
critical pressure
critical temperature
triple point
rupa
warna
Silver
rupa
indeks biasan
sifat bahan
Thermal Conductivity
13.9 W/(m K)
Pengembangan terma
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
Kekonduksian elektrik
1.1 MS/m
Kerintangan dan kekonduksian elektrik
0.0000009 m Ω
Kesuperkonduksian
1.8 K
kemagnetan
typeparamagnetic
magnetic susceptibility (Mass)
0.000000276 m³/Kg
magnetic susceptibility (Molar)
0.000000041942 m³/mol
magnetic susceptibility (Volume)
0.0014473
magnetic ordering
Suhu Curie
Néel temperature
90.5 K
struktur
Crystal StructureBody Centered Cubic (BCC)
lattice constant
4.61 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
Modulus pukal
8.3 GPa
shear modulus
7.9 GPa
Young's modulus
18 GPa
Nisbah Poisson
0.15
Kelajuan bunyi
pengelasan
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
Nombor kuantum8S7/2
space group229 (Im_3m)

Isotopes of Europium

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

130Eu

Nombor jisim130
nombor neutron67
jisim atom relatif
129.964022 ± 0.000578 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1 ± 0.4 ms
Spin1
nuclear quadrupole moment
tarikh penemuan2004
parity+

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

131Eu

Nombor jisim131
nombor neutron68
jisim atom relatif
130.957634 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
17.8 ± 1.9 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan1998
parity+

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

132Eu

Nombor jisim132
nombor neutron69
jisim atom relatif
131.954696 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin1
nuclear quadrupole moment
tarikh penemuan
parity+

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

133Eu

Nombor jisim133
nombor neutron70
jisim atom relatif
132.94929 ± 0.00032 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin5/2
nuclear quadrupole moment
tarikh penemuan
parity+

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

134Eu

Nombor jisim134
nombor neutron71
jisim atom relatif
133.946537 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
500 ± 200 ms
Spin
nuclear quadrupole moment
tarikh penemuan1989
parity

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

135Eu

Nombor jisim135
nombor neutron72
jisim atom relatif
134.94187 ± 0.00021 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.5 ± 0.2 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan1989
parity+

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

136Eu

Nombor jisim136
nombor neutron73
jisim atom relatif
135.93962 ± 0.00021 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.3 ± 0.3 s
Spin6
nuclear quadrupole moment
tarikh penemuan1987
parity+

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

137Eu

Nombor jisim137
nombor neutron74
jisim atom relatif
136.935430719 ± 0.0000047 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.4 ± 0.5 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan1982
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

138Eu

Nombor jisim138
nombor neutron75
jisim atom relatif
137.933709 ± 0.00003 Da
g-factor
0.88333333333333 ± 0.11666666666667
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin2
nuclear quadrupole moment
tarikh penemuan1982
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)

139Eu

Nombor jisim139
nombor neutron76
jisim atom relatif
138.929792307 ± 0.000014117 Da
g-factor
1.1090909090909 ± 0.14545454545455
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
17.9 ± 0.6 s
Spin11/2
nuclear quadrupole moment
tarikh penemuan1975
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

140Eu

Nombor jisim140
nombor neutron77
jisim atom relatif
139.928087633 ± 0.000055328 Da
g-factor
1.362 ± 0.013
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.51 ± 0.02 s
Spin1
nuclear quadrupole moment
tarikh penemuan1982
parity+

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

141Eu

Nombor jisim141
nombor neutron78
jisim atom relatif
140.924931734 ± 0.000013568 Da
g-factor
1.3944 ± 0.0032
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
40.7 ± 0.7 s
Spin5/2
nuclear quadrupole moment
0.85 ± 0.04
tarikh penemuan1977
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

142Eu

Nombor jisim142
nombor neutron79
jisim atom relatif
141.923446719 ± 0.000032268 Da
g-factor
1.532 ± 0.019
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.36 ± 0.1 s
Spin1
nuclear quadrupole moment
0.12 ± 0.05
tarikh penemuan1966
parity+

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

143Eu

Nombor jisim143
nombor neutron80
jisim atom relatif
142.920298678 ± 0.000011793 Da
g-factor
1.4656 ± 0.0032
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.59 ± 0.02 m
Spin5/2
nuclear quadrupole moment
0.51 ± 0.03
tarikh penemuan1965
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

144Eu

Nombor jisim144
nombor neutron81
jisim atom relatif
143.918819481 ± 0.00001158 Da
g-factor
1.888 ± 0.013
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
10.2 ± 0.1 s
Spin1
nuclear quadrupole moment
0.1 ± 0.03
tarikh penemuan1965
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

145Eu

Nombor jisim145
nombor neutron82
jisim atom relatif
144.916272659 ± 0.000003285 Da
g-factor
1.5932 ± 0.0028
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.93 ± 0.04 d
Spin5/2
nuclear quadrupole moment
0.29 ± 0.02
tarikh penemuan1951
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

146Eu

Nombor jisim146
nombor neutron83
jisim atom relatif
145.917210852 ± 0.000006451 Da
g-factor
0.3555 ± 0.00275
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.61 ± 0.03 d
Spin4
nuclear quadrupole moment
-0.18 ± 0.06
tarikh penemuan1957
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

147Eu

Nombor jisim147
nombor neutron84
jisim atom relatif
146.91675244 ± 0.000002758 Da
g-factor
1.486 ± 0.0032
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
24.1 ± 0.6 d
Spin5/2
nuclear quadrupole moment
0.55 ± 0.03
tarikh penemuan1951
parity+

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

148Eu

Nombor jisim148
nombor neutron85
jisim atom relatif
147.918091288 ± 0.000010693 Da
g-factor
0.4668 ± 0.002
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
54.5 ± 0.5 d
Spin5
nuclear quadrupole moment
0.35 ± 0.06
tarikh penemuan1951
parity-

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

149Eu

Nombor jisim149
nombor neutron86
jisim atom relatif
148.917936875 ± 0.00000419 Da
g-factor
1.4224 ± 0.0024
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
93.1 ± 0.4 d
Spin5/2
nuclear quadrupole moment
0.75 ± 0.02
tarikh penemuan1959
parity+

decay modeKeamatan (fizik)
ϵ (electron capture)100%

150Eu

Nombor jisim150
nombor neutron87
jisim atom relatif
149.919707092 ± 0.000006688 Da
g-factor
0.5404 ± 0.0022
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
36.9 ± 0.9 y
Spin5
nuclear quadrupole moment
1.13 ± 0.05
tarikh penemuan1950
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

151Eu

Nombor jisim151
nombor neutron88
jisim atom relatif
150.919856606 ± 0.000001251 Da
g-factor
1.3854 ± 0.001
natural abundance
47.81 ± 0.06
Reputan radioaktif☢️ radioactive element
setengah hayat
4.6 ± 1.2 Ey
Spin5/2
nuclear quadrupole moment
0.903 ± 0.01
tarikh penemuan1933
parity+

decay modeKeamatan (fizik)
α (α emission)100%

152Eu

Nombor jisim152
nombor neutron89
jisim atom relatif
151.92175098 ± 0.000001252 Da
g-factor
-0.64513333333333 ± 0.00056666666666667
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
13.517 ± 0.006 y
Spin3
nuclear quadrupole moment
2.72 ± 0.03
tarikh penemuan1938
parity-

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

153Eu

Nombor jisim153
nombor neutron90
jisim atom relatif
152.921236789 ± 0.000001257 Da
g-factor
0.61176 ± 0.00044
natural abundance
52.19 ± 0.06
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin5/2
nuclear quadrupole moment
2.41 ± 0.02
tarikh penemuan1933
parity+

154Eu

Nombor jisim154
nombor neutron91
jisim atom relatif
153.922985699 ± 0.000001275 Da
g-factor
-0.66666666666667 ± 0.002
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.592 ± 0.003 y
Spin3
nuclear quadrupole moment
2.85 ± 0.1
tarikh penemuan1947
parity-

decay modeKeamatan (fizik)
β (β decay)99.982%
ϵ (electron capture)0.018%

155Eu

Nombor jisim155
nombor neutron92
jisim atom relatif
154.922899847 ± 0.000001343 Da
g-factor
0.6064 ± 0.0008
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.742 ± 0.008 y
Spin5/2
nuclear quadrupole moment
2.5 ± 0.3
tarikh penemuan1947
parity+

decay modeKeamatan (fizik)
β (β decay)100%

156Eu

Nombor jisim156
nombor neutron93
jisim atom relatif
155.924762976 ± 0.000003791 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
15.19 ± 0.08 d
Spin0
nuclear quadrupole moment
0
tarikh penemuan1947
parity+

decay modeKeamatan (fizik)
β (β decay)100%

157Eu

Nombor jisim157
nombor neutron94
jisim atom relatif
156.925432556 ± 0.000004545 Da
g-factor
0.6 ± 0.008
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
15.18 ± 0.03 h
Spin5/2
nuclear quadrupole moment
2.6 ± 0.3
tarikh penemuan1951
parity+

decay modeKeamatan (fizik)
β (β decay)100%

158Eu

Nombor jisim158
nombor neutron95
jisim atom relatif
157.927782192 ± 0.000002181 Da
g-factor
1.44 ± 0.02
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
45.9 ± 0.2 m
Spin1
nuclear quadrupole moment
0.66 ± 0.14
tarikh penemuan1951
parity-

decay modeKeamatan (fizik)
β (β decay)100%

159Eu

Nombor jisim159
nombor neutron96
jisim atom relatif
158.929099512 ± 0.000004637 Da
g-factor
0.552 ± 0.008
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
18.1 ± 0.1 m
Spin5/2
nuclear quadrupole moment
2.7 ± 0.3
tarikh penemuan1961
parity+

decay modeKeamatan (fizik)
β (β decay)100%

160Eu

Nombor jisim160
nombor neutron97
jisim atom relatif
159.931836982 ± 0.00000097 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
42.6 ± 0.5 s
Spin5
nuclear quadrupole moment
tarikh penemuan1973
parity-

decay modeKeamatan (fizik)
β (β decay)100%

161Eu

Nombor jisim161
nombor neutron98
jisim atom relatif
160.933663991 ± 0.000011164 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
26.2 ± 2.3 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan1986
parity+

decay modeKeamatan (fizik)
β (β decay)100%

162Eu

Nombor jisim162
nombor neutron99
jisim atom relatif
161.936958329 ± 0.00000141 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin1
nuclear quadrupole moment
tarikh penemuan1987
parity+

decay modeKeamatan (fizik)
β (β decay)100%

163Eu

Nombor jisim163
nombor neutron100
jisim atom relatif
162.93926551 ± 0.00000097 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
7.7 ± 0.4 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan2007
parity+

decay modeKeamatan (fizik)
β (β decay)100%

164Eu

Nombor jisim164
nombor neutron101
jisim atom relatif
163.942852943 ± 0.000002219 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.16 ± 0.19 s
Spin3
nuclear quadrupole moment
tarikh penemuan2007
parity-

decay modeKeamatan (fizik)
β (β decay)100%

165Eu

Nombor jisim165
nombor neutron102
jisim atom relatif
164.94554007 ± 0.000005596 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.53 ± 0.25 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan2007
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

166Eu

Nombor jisim166
nombor neutron103
jisim atom relatif
165.949813 ± 0.000107 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.24 ± 0.12 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan2007
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

167Eu

Nombor jisim167
nombor neutron104
jisim atom relatif
166.953011 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.33 ± 0.51 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan2012
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

168Eu

Nombor jisim168
nombor neutron105
jisim atom relatif
167.957863 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
200 ± 100 ms
Spin6
nuclear quadrupole moment
tarikh penemuan2012
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

169Eu

Nombor jisim169
nombor neutron106
jisim atom relatif
168.961717 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin5/2
nuclear quadrupole moment
tarikh penemuan2018
parity+

decay modeKeamatan (fizik)
β (β decay)

170Eu

Nombor jisim170
nombor neutron107
jisim atom relatif
169.96687 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan
parity

decay modeKeamatan (fizik)
β (β decay)
β n (β-delayed neutron emission)
Eu-Block

sejarah

penemu atau perekaEugène Demarçay
tempat penemuanFrance
tarikh penemuan1901
EtimologiNamed for the continent of Europe.
sebutanyoo-RO-pi-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
0.00000013 mg/L
natural abundance (Tubuh manusia)
natural abundance (Meteoroid)
0.0000059 %
natural abundance (Matahari)
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