Europij[um]

Europij[um] (Eu)

hemijski element sa simbolom Eu i atomskim brojem 63
Atomic Number63
Atomic Weight151.964
Maseni broj153
Group
Period6
Blockf
Proton63 p+
Neutron90 n0
Elektron63 e-
Animated Bohrov model atoma of Eu (Europij[um])

Physical Property

Atomski Radijus
185 pm
Molarni volumen
covalent radius
168 pm
Metallic Radius
Ionski radijus
117 pm
Crystal Radius
131 pm
Van der Waalsov radijus
235 pm
gustoća
5,24 g/cm³
Atomic Radii Of The Elements: Europij[um]0102030405060708090100110120130140150160170180190200210220230240pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
5,670385 eV/particle
ionization energy of Eu (Europij[um])
Toplota isparavanja
176 kJ/mol
toplota topljenja
standard enthalpy of formation
177,4 kJ/mol
Elektron
electron shell2, 8, 18, 25, 8, 2
Bohrov model atoma: Eu (Europij[um])
Valentni elektron2
Lewis structure: Eu (Europij[um])
electron configuration[Xe] 4f7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f7 6s2
Enhanced Bohrov model atoma of Eu (Europij[um])
Orbital Diagram of Eu (Europij[um])
oksidacijsko stanje0, 2, 3
Elektronegativnost
Electrophilicity Index
1,1104548254099753 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
1.802,15 K
Melting Point
1.095,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearance
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
13,9 W/(m K)
thermal expansion
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
Specifična električna provodljivost
1,1 MS/m
electrical resistivity
0,0000009 m Ω
Superprovodljivost
1,8 K
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,000000276 m³/Kg
magnetic susceptibility (Molar)
0,000000041942 m³/mol
magnetic susceptibility (Volume)
0,0014473
magnetic ordering
Kirijeva tačka
Néel temperature
90,5 K
struktura
Crystal StructureBody Centered Cubic (BCC)
lattice constant
4,61 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
bulk modulus
8,3 GPa
shear modulus
7,9 GPa
Young's modulus
18 GPa
Poisson's ratio
0,15
Brzina zvuka
klasifikacija
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
Kvantni brojevi8S7/2
space group229 (Im_3m)

Isotopes of Europium

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

130Eu

Maseni broj130
broj neutrona67
relative atomic mass
129,964022 ± 0,000578 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1 ± 0,4 ms
spin1
nuclear quadrupole moment
datum otkrića2004
parity+

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

131Eu

Maseni broj131
broj neutrona68
relative atomic mass
130,957634 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,8 ± 1,9 ms
spin3/2
nuclear quadrupole moment
datum otkrića1998
parity+

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

132Eu

Maseni broj132
broj neutrona69
relative atomic mass
131,954696 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1
nuclear quadrupole moment
datum otkrića
parity+

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

133Eu

Maseni broj133
broj neutrona70
relative atomic mass
132,94929 ± 0,00032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
datum otkrića
parity+

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

134Eu

Maseni broj134
broj neutrona71
relative atomic mass
133,946537 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
500 ± 200 ms
spin
nuclear quadrupole moment
datum otkrića1989
parity

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

135Eu

Maseni broj135
broj neutrona72
relative atomic mass
134,94187 ± 0,00021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,5 ± 0,2 s
spin5/2
nuclear quadrupole moment
datum otkrića1989
parity+

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

136Eu

Maseni broj136
broj neutrona73
relative atomic mass
135,93962 ± 0,00021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,3 ± 0,3 s
spin6
nuclear quadrupole moment
datum otkrića1987
parity+

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

137Eu

Maseni broj137
broj neutrona74
relative atomic mass
136,935430719 ± 0,0000047 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,4 ± 0,5 s
spin5/2
nuclear quadrupole moment
datum otkrića1982
parity+

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

138Eu

Maseni broj138
broj neutrona75
relative atomic mass
137,933709 ± 0,00003 Da
g-factor
0,88333333333333 ± 0,11666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin2
nuclear quadrupole moment
datum otkrića1982
parity-

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

139Eu

Maseni broj139
broj neutrona76
relative atomic mass
138,929792307 ± 0,000014117 Da
g-factor
1,1090909090909 ± 0,14545454545455
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,9 ± 0,6 s
spin11/2
nuclear quadrupole moment
datum otkrića1975
parity

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

140Eu

Maseni broj140
broj neutrona77
relative atomic mass
139,928087633 ± 0,000055328 Da
g-factor
1,362 ± 0,013
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,51 ± 0,02 s
spin1
nuclear quadrupole moment
datum otkrića1982
parity+

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

141Eu

Maseni broj141
broj neutrona78
relative atomic mass
140,924931734 ± 0,000013568 Da
g-factor
1,3944 ± 0,0032
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
40,7 ± 0,7 s
spin5/2
nuclear quadrupole moment
0,85 ± 0,04
datum otkrića1977
parity+

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

142Eu

Maseni broj142
broj neutrona79
relative atomic mass
141,923446719 ± 0,000032268 Da
g-factor
1,532 ± 0,019
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,36 ± 0,1 s
spin1
nuclear quadrupole moment
0,12 ± 0,05
datum otkrića1966
parity+

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

143Eu

Maseni broj143
broj neutrona80
relative atomic mass
142,920298678 ± 0,000011793 Da
g-factor
1,4656 ± 0,0032
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,59 ± 0,02 m
spin5/2
nuclear quadrupole moment
0,51 ± 0,03
datum otkrića1965
parity+

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

144Eu

Maseni broj144
broj neutrona81
relative atomic mass
143,918819481 ± 0,00001158 Da
g-factor
1,888 ± 0,013
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,2 ± 0,1 s
spin1
nuclear quadrupole moment
0,1 ± 0,03
datum otkrića1965
parity+

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

145Eu

Maseni broj145
broj neutrona82
relative atomic mass
144,916272659 ± 0,000003285 Da
g-factor
1,5932 ± 0,0028
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,93 ± 0,04 d
spin5/2
nuclear quadrupole moment
0,29 ± 0,02
datum otkrića1951
parity+

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

146Eu

Maseni broj146
broj neutrona83
relative atomic mass
145,917210852 ± 0,000006451 Da
g-factor
0,3555 ± 0,00275
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,61 ± 0,03 d
spin4
nuclear quadrupole moment
-0,18 ± 0,06
datum otkrića1957
parity-

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

147Eu

Maseni broj147
broj neutrona84
relative atomic mass
146,91675244 ± 0,000002758 Da
g-factor
1,486 ± 0,0032
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24,1 ± 0,6 d
spin5/2
nuclear quadrupole moment
0,55 ± 0,03
datum otkrića1951
parity+

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

148Eu

Maseni broj148
broj neutrona85
relative atomic mass
147,918091288 ± 0,000010693 Da
g-factor
0,4668 ± 0,002
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
54,5 ± 0,5 d
spin5
nuclear quadrupole moment
0,35 ± 0,06
datum otkrića1951
parity-

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

149Eu

Maseni broj149
broj neutrona86
relative atomic mass
148,917936875 ± 0,00000419 Da
g-factor
1,4224 ± 0,0024
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
93,1 ± 0,4 d
spin5/2
nuclear quadrupole moment
0,75 ± 0,02
datum otkrića1959
parity+

decay modeintensity
ϵ (electron capture)100%

150Eu

Maseni broj150
broj neutrona87
relative atomic mass
149,919707092 ± 0,000006688 Da
g-factor
0,5404 ± 0,0022
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
36,9 ± 0,9 y
spin5
nuclear quadrupole moment
1,13 ± 0,05
datum otkrića1950
parity-

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

151Eu

Maseni broj151
broj neutrona88
relative atomic mass
150,919856606 ± 0,000001251 Da
g-factor
1,3854 ± 0,001
natural abundance
47,81 ± 0,06
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,6 ± 1,2 Ey
spin5/2
nuclear quadrupole moment
0,903 ± 0,01
datum otkrića1933
parity+

decay modeintensity
α (α emission)100%

152Eu

Maseni broj152
broj neutrona89
relative atomic mass
151,92175098 ± 0,000001252 Da
g-factor
-0,64513333333333 ± 0,00056666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,517 ± 0,006 y
spin3
nuclear quadrupole moment
2,72 ± 0,03
datum otkrića1938
parity-

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

153Eu

Maseni broj153
broj neutrona90
relative atomic mass
152,921236789 ± 0,000001257 Da
g-factor
0,61176 ± 0,00044
natural abundance
52,19 ± 0,06
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
2,41 ± 0,02
datum otkrića1933
parity+

154Eu

Maseni broj154
broj neutrona91
relative atomic mass
153,922985699 ± 0,000001275 Da
g-factor
-0,66666666666667 ± 0,002
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,592 ± 0,003 y
spin3
nuclear quadrupole moment
2,85 ± 0,1
datum otkrića1947
parity-

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

155Eu

Maseni broj155
broj neutrona92
relative atomic mass
154,922899847 ± 0,000001343 Da
g-factor
0,6064 ± 0,0008
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,742 ± 0,008 y
spin5/2
nuclear quadrupole moment
2,5 ± 0,3
datum otkrića1947
parity+

decay modeintensity
β (β decay)100%

156Eu

Maseni broj156
broj neutrona93
relative atomic mass
155,924762976 ± 0,000003791 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
15,19 ± 0,08 d
spin0
nuclear quadrupole moment
0
datum otkrića1947
parity+

decay modeintensity
β (β decay)100%

157Eu

Maseni broj157
broj neutrona94
relative atomic mass
156,925432556 ± 0,000004545 Da
g-factor
0,6 ± 0,008
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
15,18 ± 0,03 h
spin5/2
nuclear quadrupole moment
2,6 ± 0,3
datum otkrića1951
parity+

decay modeintensity
β (β decay)100%

158Eu

Maseni broj158
broj neutrona95
relative atomic mass
157,927782192 ± 0,000002181 Da
g-factor
1,44 ± 0,02
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
45,9 ± 0,2 m
spin1
nuclear quadrupole moment
0,66 ± 0,14
datum otkrića1951
parity-

decay modeintensity
β (β decay)100%

159Eu

Maseni broj159
broj neutrona96
relative atomic mass
158,929099512 ± 0,000004637 Da
g-factor
0,552 ± 0,008
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
18,1 ± 0,1 m
spin5/2
nuclear quadrupole moment
2,7 ± 0,3
datum otkrića1961
parity+

decay modeintensity
β (β decay)100%

160Eu

Maseni broj160
broj neutrona97
relative atomic mass
159,931836982 ± 0,00000097 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
42,6 ± 0,5 s
spin5
nuclear quadrupole moment
datum otkrića1973
parity-

decay modeintensity
β (β decay)100%

161Eu

Maseni broj161
broj neutrona98
relative atomic mass
160,933663991 ± 0,000011164 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
26,2 ± 2,3 s
spin5/2
nuclear quadrupole moment
datum otkrića1986
parity+

decay modeintensity
β (β decay)100%

162Eu

Maseni broj162
broj neutrona99
relative atomic mass
161,936958329 ± 0,00000141 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1
nuclear quadrupole moment
datum otkrića1987
parity+

decay modeintensity
β (β decay)100%

163Eu

Maseni broj163
broj neutrona100
relative atomic mass
162,93926551 ± 0,00000097 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,7 ± 0,4 s
spin5/2
nuclear quadrupole moment
datum otkrića2007
parity+

decay modeintensity
β (β decay)100%

164Eu

Maseni broj164
broj neutrona101
relative atomic mass
163,942852943 ± 0,000002219 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,16 ± 0,19 s
spin3
nuclear quadrupole moment
datum otkrića2007
parity-

decay modeintensity
β (β decay)100%

165Eu

Maseni broj165
broj neutrona102
relative atomic mass
164,94554007 ± 0,000005596 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,53 ± 0,25 s
spin5/2
nuclear quadrupole moment
datum otkrića2007
parity+

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

166Eu

Maseni broj166
broj neutrona103
relative atomic mass
165,949813 ± 0,000107 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,24 ± 0,12 s
spin0
nuclear quadrupole moment
0
datum otkrića2007
parity-

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

167Eu

Maseni broj167
broj neutrona104
relative atomic mass
166,953011 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,33 ± 0,51 s
spin5/2
nuclear quadrupole moment
datum otkrića2012
parity+

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

168Eu

Maseni broj168
broj neutrona105
relative atomic mass
167,957863 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
200 ± 100 ms
spin6
nuclear quadrupole moment
datum otkrića2012
parity-

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

169Eu

Maseni broj169
broj neutrona106
relative atomic mass
168,961717 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
datum otkrića2018
parity+

decay modeintensity
β (β decay)

170Eu

Maseni broj170
broj neutrona107
relative atomic mass
169,96687 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

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

historija

otkrivač ili izumiteljEugène Demarçay
mjesto otkrićaFrance
datum otkrića1901
EtimologijaNamed for the continent of Europe.
pronunciationyoo-RO-pi-em (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
0,00000013 mg/L
natural abundance (ljudsko tijelo)
natural abundance (Meteoroidi)
0,0000059 %
natural abundance (Sunce)
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