Gadolinyûm

Gadolinyûm (Gd)

element with the atomic number of 64
Atomic Number64
Atomic Weight157.25
Hejmara baristeyî158
Group
Period6
Blockf
Proton64 p+
Notron94 n0
Kareva64 e-
Animated Bohr model of Gd (Gadolinyûm)

Physical Property

Atomic Radius
180 pm
molar volume
Covalent Radius
169 pm
Metallic Radius
ionic radius
93,8 pm
Crystal Radius
107,8 pm
Van der Waals radius
234 pm
density
7,9 g/cm³
Atomic Radii Of The Elements: Gadolinyûm0102030405060708090100110120130140150160170180190200210220230240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
6,149796 eV/particle
ionization energy of Gd (Gadolinyûm)
enthalpy of vaporization
398 kJ/mol
enthalpy of fusion
standard enthalpy of formation
397,5 kJ/mol
Kareva
electron shell2, 8, 18, 25, 9, 2
Bohr model: Gd (Gadolinyûm)
valence electron2
Lewis structure: Gd (Gadolinyûm)
electron configuration[Xe] 4f7 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f7 5d1 6s2
Enhanced Bohr model of Gd (Gadolinyûm)
Orbital Diagram of Gd (Gadolinyûm)
oxidation number0, 1, 2, 3
electronegativity
1.2
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3.546,15 K
Melting Point
1.586,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000094 1/K
molar heat capacity
37,03 J/(mol K)
Specific Heat Capacity
0,236 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
0,77 MS/m
electrical resistivity
0,0000013 m Ω
superconductivity
magnetism
typeferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Germahiya Curie
292 K
Néel temperature
pêkhate
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,64 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
38 GPa
shear modulus
22 GPa
Young's modulus
55 GPa
Poisson's ratio
0,26
Leza dengê
2.680 m/s
classification
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number26
Mendeleev Number27
Pettifor Number27
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
158 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
49.000
Neutron Mass Absorption
7,3
quantum number9D2
space group194 (P63/mmc)

Isotopes of Gadolinium

Stable Isotopes5
Unstable Isotopes35
Natural Isotopes7
Isotopic Composition15824.84%15824.84%16021.86%16021.86%15620.47%15620.47%15514.80%15514.80%15715.65%15715.65%1542.18%1542.18%1520.20%1520.20%

133Gd

Hejmara baristeyî133
neutron number69
Giraniya atomê
132,961288 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê
parity+

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

134Gd

Hejmara baristeyî134
neutron number70
Giraniya atomê
133,955416 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

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

135Gd

Hejmara baristeyî135
neutron number71
Giraniya atomê
134,952496 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,1 ± 0,2 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1996
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)2%

136Gd

Hejmara baristeyî136
neutron number72
Giraniya atomê
135,9473 ± 0,00032 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2000
parity+

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

137Gd

Hejmara baristeyî137
neutron number73
Giraniya atomê
136,94502 ± 0,00032 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,2 ± 0,2 s
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1999
parity

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

138Gd

Hejmara baristeyî138
neutron number74
Giraniya atomê
137,940247 ± 0,000215 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4,7 ± 0,9 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1985
parity+

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

139Gd

Hejmara baristeyî139
neutron number75
Giraniya atomê
138,93813 ± 0,00021 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5,7 ± 0,3 s
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1983
parity-

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

140Gd

Hejmara baristeyî140
neutron number76
Giraniya atomê
139,933674 ± 0,00003 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
15,8 ± 0,4 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1985
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)67%
ϵ (electron capture)33%

141Gd

Hejmara baristeyî141
neutron number77
Giraniya atomê
140,932126 ± 0,000021213 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
14 ± 4 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1986
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.03%

142Gd

Hejmara baristeyî142
neutron number78
Giraniya atomê
141,928116 ± 0,00003 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
70,2 ± 0,6 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1986
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
ϵ (electron capture)52%
e+ (positron emission)48%

143Gd

Hejmara baristeyî143
neutron number79
Giraniya atomê
142,926750678 ± 0,000215032 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
39 ± 2 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1975
parity+

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

144Gd

Hejmara baristeyî144
neutron number80
Giraniya atomê
143,922963 ± 0,00003 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4,47 ± 0,06 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1968
parity+

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

145Gd

Hejmara baristeyî145
neutron number81
Giraniya atomê
144,921710051 ± 0,000021165 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
23 ± 0,4 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1959
parity+

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

146Gd

Hejmara baristeyî146
neutron number82
Giraniya atomê
145,918318513 ± 0,000004376 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
48,27 ± 0,09 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1957
parity+

decay modeintensity
ϵ (electron capture)100%

147Gd

Hejmara baristeyî147
neutron number83
Giraniya atomê
146,919101014 ± 0,000002025 Da
g-factor
0,29142857142857 ± 0,025714285714286
natural abundance
radioactivity☢️ radioactive element
half-life
38,06 ± 0,12 h
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1957
parity-

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

148Gd

Hejmara baristeyî148
neutron number84
Giraniya atomê
147,918121414 ± 0,000001566 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
71,3 ± 1 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1953
parity+

decay modeintensity
α (α emission)100%
+ (double β+ decay)

149Gd

Hejmara baristeyî149
neutron number85
Giraniya atomê
148,919347666 ± 0,000003553 Da
g-factor
0,25142857142857 ± 0,011428571428571
natural abundance
radioactivity☢️ radioactive element
half-life
9,28 ± 0,1 d
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1951
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)4.3%

150Gd

Hejmara baristeyî150
neutron number86
Giraniya atomê
149,918663949 ± 0,0000065 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,79 ± 0,08 My
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1953
parity+

decay modeintensity
α (α emission)100%
+ (double β+ decay)

151Gd

Hejmara baristeyî151
neutron number87
Giraniya atomê
150,920354922 ± 0,000003212 Da
g-factor
0,22 ± 0,017142857142857
natural abundance
radioactivity☢️ radioactive element
half-life
123,9 ± 1 d
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1950
parity-

decay modeintensity
ϵ (electron capture)100%
α (α emission)1.1%

152Gd

Hejmara baristeyî152
neutron number88
Giraniya atomê
151,919798414 ± 0,000001081 Da
g-factor
0
natural abundance
0,2 ± 0,03
radioactivity☢️ radioactive element
half-life
108 ± 8 Ty
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1938
parity+

decay modeintensity
α (α emission)100%
+ (double β+ decay)

153Gd

Hejmara baristeyî153
neutron number89
Giraniya atomê
152,921756945 ± 0,000001075 Da
g-factor
0,25333333333333 ± 0,053333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
240,6 ± 0,7 d
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1947
parity-

decay modeintensity
ϵ (electron capture)100%

154Gd

Hejmara baristeyî154
neutron number90
Giraniya atomê
153,920872974 ± 0,000001066 Da
g-factor
0
natural abundance
2,18 ± 0,02
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1938
parity+

155Gd

Hejmara baristeyî155
neutron number91
Giraniya atomê
154,922629356 ± 0,000001055 Da
g-factor
-0,17273333333333 ± 0,00026666666666667
natural abundance
14,8 ± 0,09
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
1,27 ± 0,03
dema îcadkirinê yan keşfê1933
parity-

156Gd

Hejmara baristeyî156
neutron number92
Giraniya atomê
155,92213012 ± 0,000001054 Da
g-factor
0
natural abundance
20,47 ± 0,03
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

157Gd

Hejmara baristeyî157
neutron number93
Giraniya atomê
156,923967424 ± 0,000001048 Da
g-factor
-0,22653333333333 ± 0,0004
natural abundance
15,65 ± 0,04
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
1,35 ± 0,03
dema îcadkirinê yan keşfê1933
parity-

158Gd

Hejmara baristeyî158
neutron number94
Giraniya atomê
157,9241112 ± 0,000001048 Da
g-factor
0
natural abundance
24,84 ± 0,08
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

159Gd

Hejmara baristeyî159
neutron number95
Giraniya atomê
158,926395822 ± 0,000001051 Da
g-factor
-0,29333333333333 ± 0,02
natural abundance
radioactivity☢️ radioactive element
half-life
18,479 ± 0,004 h
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1949
parity-

decay modeintensity
β (β decay)100%

160Gd

Hejmara baristeyî160
neutron number96
Giraniya atomê
159,927061202 ± 0,000001206 Da
g-factor
0
natural abundance
21,86 ± 0,03
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

decay modeintensity
(double β decay)

161Gd

Hejmara baristeyî161
neutron number97
Giraniya atomê
160,929676267 ± 0,000001614 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,646 ± 0,003 m
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1949
parity-

decay modeintensity
β (β decay)100%

162Gd

Hejmara baristeyî162
neutron number98
Giraniya atomê
161,930991812 ± 0,000004254 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
8,4 ± 0,2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β (β decay)100%

163Gd

Hejmara baristeyî163
neutron number99
Giraniya atomê
162,93409664 ± 0,000000855 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
68 ± 3 s
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1982
parity+

decay modeintensity
β (β decay)100%

164Gd

Hejmara baristeyî164
neutron number100
Giraniya atomê
163,935916193 ± 0,000001073 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 3 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1988
parity+

decay modeintensity
β (β decay)100%

165Gd

Hejmara baristeyî165
neutron number101
Giraniya atomê
164,93931708 ± 0,0000014 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
11,6 ± 1 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1998
parity-

decay modeintensity
β (β decay)100%

166Gd

Hejmara baristeyî166
neutron number102
Giraniya atomê
165,941630413 ± 0,0000017 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5,1 ± 0,8 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2005
parity+

decay modeintensity
β (β decay)100%

167Gd

Hejmara baristeyî167
neutron number103
Giraniya atomê
166,945490012 ± 0,000005596 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,2 ± 0,3 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2012
parity-

decay modeintensity
β (β decay)100%

168Gd

Hejmara baristeyî168
neutron number104
Giraniya atomê
167,948309 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,03 ± 0,16 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1985
parity+

decay modeintensity
β (β decay)100%

169Gd

Hejmara baristeyî169
neutron number105
Giraniya atomê
168,952882 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
750 ± 210 ms
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2012
parity-

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

170Gd

Hejmara baristeyî170
neutron number106
Giraniya atomê
169,956146 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
420 ± 130 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2012
parity+

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

171Gd

Hejmara baristeyî171
neutron number107
Giraniya atomê
170,961127 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2018
parity+

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

172Gd

Hejmara baristeyî172
neutron number108
Giraniya atomê
171,964605 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Gadolinium

dîrok

kaşîf an îcadkerJean de Marignac
location of discoverySwitzerland
dema îcadkirinê yan keşfê1880
BêjenasîNamed after the mineral gadolinite.
pronunciationGAD-eh-LIN-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
6,2 mg/kg
natural abundance (Okyanûs)
0,0000007 mg/L
natural abundance (human body)
natural abundance (meteoroid)
0,000023 %
natural abundance (Roj)
0,0000002 %
Abundance in Universe
0,0000002 %

Nuclear Screening Constants

1s1.2565
2p4.2946
2s16.783
3d13.723
3p19.8508
3s20.2903
4d34.3664
4f38.9864
4p31.3532
4s30.556
5p47.236
5s45.118
6s55.7854