Cerium

Cerium (Ce)

chemical element with the atomic number of 58
Atomic Number58
Atomic Weight140.116
Numri i masës140
Group
Period6
Blockf
protoni58 p+
neutroni82 n0
elektroni58 e-
Animated Bohr model of Ce (Cerium)

Tipar Fizik

Atomic Radius
185 pm
molar volume
covalent radius
163 pm
Metallic Radius
ionic radius
101 pm
Crystal Radius
115 pm
Van der Waals radius
242 pm
density
6,77 g/cm³
Atomic Radii Of The Elements: Cerium0255075100125150175200225250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
electron affinity
ionization energy
ionization energy of Ce (Cerium)
enthalpy of vaporization
398 kJ/mol
enthalpy of fusion
5,2 kJ/mol
standard enthalpy of formation
420,1 kJ/mol
elektroni
electron shell2, 8, 18, 19, 9, 2
Bohr model: Ce (Cerium)
valence electron2
Lewis structure: Ce (Cerium)
konfigurimi i elektronit[Xe] 4f1 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f1 5d1 6s2
Enhanced Bohr model of Ce (Cerium)
Orbital Diagram of Ce (Cerium)
oxidation number2, 3, 4
Elektronegativiteti
1.12
Electrophilicity Index
0,9792877807552266 eV/particle
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
3 716,15 K
Melting Point
1 072,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
11,3 W/(m K)
thermal expansion
0,0000063 1/K
molar heat capacity
26,94 J/(mol K)
Specific Heat Capacity
0,192 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1,4 MS/m
electrical resistivity
0,00000075 m Ω
Superpërcjellshmëria
0,022 K
Magnetizimi
typeparamagnetic
magnetic susceptibility (Mass)
0,00000022 m³/Kg
magnetic susceptibility (Molar)
0,000000030826 m³/mol
magnetic susceptibility (Volume)
0,0014716
magnetic ordering
Curie temperature
Néel temperature
12,5 K
strukturë
Crystal StructureSimple Hexagonal (FCC)
lattice constant
5,16 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
2,5 MPa
bulk modulus
22 GPa
shear modulus
14 GPa
Young's modulus
34 GPa
Poisson's ratio
0,24
Shpejtësia e zërit
2 100 m/s
klasifikim
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number31
Mendeleev Number15
Pettifor Number32
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
205 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
0,6
Neutron Mass Absorption
0,00021
numër kuantik1G4
space group194 (P63/mmc)

Isotopes of Cerium

Stable Isotopes1
Unstable Isotopes40
Natural Isotopes4
Isotopic Composition14088.45%14088.45%14211.11%14211.11%1360.19%1360.19%1380.25%1380.25%

119Ce

Numri i masës119
numri i neutroneve61
relative atomic mass
118,952957 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity+

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

120Ce

Numri i masës120
numri i neutroneve62
relative atomic mass
119,946613 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes
parity+

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

121Ce

Numri i masës121
numri i neutroneve63
relative atomic mass
120,943435 ± 0,00043 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,1 ± 0,1 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1997
parity

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)1%

122Ce

Numri i masës122
numri i neutroneve64
relative atomic mass
121,93787 ± 0,00043 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2005
parity+

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

123Ce

Numri i masës123
numri i neutroneve65
relative atomic mass
122,93528 ± 0,00032 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,8 ± 0,2 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1984
parity

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

124Ce

Numri i masës124
numri i neutroneve66
relative atomic mass
123,93031 ± 0,00032 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,1 ± 1,2 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1978
parity+

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

125Ce

Numri i masës125
numri i neutroneve67
relative atomic mass
124,92844 ± 0,00021 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,7 ± 0,3 s
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1978
parity-

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

126Ce

Numri i masës126
numri i neutroneve68
relative atomic mass
125,923971 ± 0,00003 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
51 ± 0,3 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1978
parity+

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

127Ce

Numri i masës127
numri i neutroneve69
relative atomic mass
126,922727 ± 0,000031 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
34 ± 2 s
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1978
parity+

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

128Ce

Numri i masës128
numri i neutroneve70
relative atomic mass
127,918911 ± 0,00003 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,93 ± 0,02 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1968
parity+

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

129Ce

Numri i masës129
numri i neutroneve71
relative atomic mass
128,918102 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,5 ± 0,3 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity+

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

130Ce

Numri i masës130
numri i neutroneve72
relative atomic mass
129,914736 ± 0,00003 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
22,9 ± 0,5 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1965
parity+

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

131Ce

Numri i masës131
numri i neutroneve73
relative atomic mass
130,914429465 ± 0,000035214 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,3 ± 0,3 m
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1966
parity+

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

132Ce

Numri i masës132
numri i neutroneve74
relative atomic mass
131,911466226 ± 0,000021907 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,51 ± 0,11 h
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1960
parity+

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

133Ce

Numri i masës133
numri i neutroneve75
relative atomic mass
132,911520402 ± 0,000017557 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
97 ± 4 m
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1951
parity+

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

134Ce

Numri i masës134
numri i neutroneve76
relative atomic mass
133,908928142 ± 0,000021886 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,16 ± 0,04 d
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1951
parity+

decay modeintensitet
ϵ (electron capture)100%

135Ce

Numri i masës135
numri i neutroneve77
relative atomic mass
134,909160662 ± 0,000011021 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
17,7 ± 0,3 h
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1948
parity+

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

136Ce

Numri i masës136
numri i neutroneve78
relative atomic mass
135,907129256 ± 0,000000348 Da
g-factor
0
natural abundance
0,186 ± 0,002
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1936
parity+

decay modeintensitet
+ (double β+ decay)

137Ce

Numri i masës137
numri i neutroneve79
relative atomic mass
136,907762416 ± 0,000000386 Da
g-factor
0,64 ± 0,026666666666667
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9 ± 0,3 h
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1948
parity+

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

138Ce

Numri i masës138
numri i neutroneve80
relative atomic mass
137,90599418 ± 0,000000536 Da
g-factor
0
natural abundance
0,251 ± 0,002
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1936
parity+

decay modeintensitet
+ (double β+ decay)

139Ce

Numri i masës139
numri i neutroneve81
relative atomic mass
138,906647029 ± 0,000002242 Da
g-factor
0,70666666666667 ± 0,026666666666667
natural abundance
Radioaktivitet☢️ radioactive element
half-life
137,642 ± 0,02 d
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1948
parity+

decay modeintensitet
ϵ (electron capture)100%

140Ce

Numri i masës140
numri i neutroneve82
relative atomic mass
139,905448433 ± 0,000001409 Da
g-factor
0
natural abundance
88,449 ± 0,051
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1925
parity+

141Ce

Numri i masës141
numri i neutroneve83
relative atomic mass
140,908285991 ± 0,000001411 Da
g-factor
0,31142857142857 ± 0,011428571428571
natural abundance
Radioaktivitet☢️ radioactive element
half-life
32,505 ± 0,01 d
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1948
parity-

decay modeintensitet
β (β decay)100%

142Ce

Numri i masës142
numri i neutroneve84
relative atomic mass
141,909250208 ± 0,000002623 Da
g-factor
0
natural abundance
11,114 ± 0,051
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1925
parity+

decay modeintensitet
α (α emission)
(double β decay)

143Ce

Numri i masës143
numri i neutroneve85
relative atomic mass
142,912391953 ± 0,000002621 Da
g-factor
0,28666666666667 ± 0,0066666666666667
natural abundance
Radioaktivitet☢️ radioactive element
half-life
33,039 ± 0,006 h
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1948
parity-

decay modeintensitet
β (β decay)100%

144Ce

Numri i masës144
numri i neutroneve86
relative atomic mass
143,913652763 ± 0,000003041 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
284,886 ± 0,025 d
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1945
parity+

decay modeintensitet
β (β decay)100%

145Ce

Numri i masës145
numri i neutroneve87
relative atomic mass
144,917265113 ± 0,000036393 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,01 ± 0,06 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1954
parity-

decay modeintensitet
β (β decay)100%

146Ce

Numri i masës146
numri i neutroneve88
relative atomic mass
145,918812294 ± 0,000015743 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
13,49 ± 0,16 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1953
parity+

decay modeintensitet
β (β decay)100%

147Ce

Numri i masës147
numri i neutroneve89
relative atomic mass
146,9226899 ± 0,000009211 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
56,4 ± 1 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1964
parity-

decay modeintensitet
β (β decay)100%

148Ce

Numri i masës148
numri i neutroneve90
relative atomic mass
147,924424186 ± 0,000012017 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
56,8 ± 0,3 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1964
parity+

decay modeintensitet
β (β decay)100%

149Ce

Numri i masës149
numri i neutroneve91
relative atomic mass
148,9284269 ± 0,000011 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,94 ± 0,04 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1974
parity-

decay modeintensitet
β (β decay)100%

150Ce

Numri i masës150
numri i neutroneve92
relative atomic mass
149,930384032 ± 0,000012556 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
6,05 ± 0,07 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1970
parity+

decay modeintensitet
β (β decay)100%

151Ce

Numri i masës151
numri i neutroneve93
relative atomic mass
150,9342722 ± 0,000019 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,76 ± 0,06 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1997
parity-

decay modeintensitet
β (β decay)100%

152Ce

Numri i masës152
numri i neutroneve94
relative atomic mass
151,936682 ± 0,000215 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,42 ± 0,02 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1990
parity+

decay modeintensitet
β (β decay)100%

153Ce

Numri i masës153
numri i neutroneve95
relative atomic mass
152,941052 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
865 ± 25 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1994
parity-

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

154Ce

Numri i masës154
numri i neutroneve96
relative atomic mass
153,94394 ± 0,000215 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
722 ± 14 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1994
parity+

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

155Ce

Numri i masës155
numri i neutroneve97
relative atomic mass
154,948706 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
313 ± 7 ms
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1994
parity-

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

156Ce

Numri i masës156
numri i neutroneve98
relative atomic mass
155,951884 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
233 ± 9 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2017
parity+

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

157Ce

Numri i masës157
numri i neutroneve99
relative atomic mass
156,957133 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
175 ± 41 ms
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity+

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

158Ce

Numri i masës158
numri i neutroneve100
relative atomic mass
157,960773 ± 0,000429 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
99 ± 93 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2016
parity+

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

159Ce

Numri i masës159
numri i neutroneve101
relative atomic mass
158,966355 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes
parity-

decay modeintensitet
β (β decay)
β n (β-delayed neutron emission)
CE2k2g

historia

zbuluesW. von Hisinger, J. Berzelius, M. Klaproth
vendndodhja e zbulimitSweden/Germany
koha e zbulimit apo shpikjes1803
EtimologjiaNamed after the asteroid, Ceres, discovered two years before the element.
pronunciationSER-i-em (anglisht)

burim

Abundance
Abundance in Earth's crust
66,5 mg/kg
natural abundance (Oqeani)
0,0000012 mg/L
natural abundance (Trupi i njeriut)
natural abundance (meteoroid)
0,000075 %
natural abundance (Diell)
0,0000004 %
Abundance in Universe
0,000001 %

Nuclear Screening Constants

1s1.1519
2p4.2176
2s15.26
3d13.9147
3p19.0405
3s19.3408
4d32.3392
4f56.324
4p29.3936
4s28.32
5p41.0345
5s39.0865
6s47.2036