Neodimju[m]

Neodimju[m] (Nd)

chemical element with the atomic number of 60 and symbol Nd
Atomic Number60
Atomic Weight144.242
mass number142
Group
Period6
Blockf
proton60 p+
neutron82 n0
elettron60 e-
Animated Bohr model of Nd (Neodimju[m])

Physical Property

Atomic Radius
185 pm
molar volume
covalent radius
174 pm
Metallic Radius
ionic radius
129 pm
Crystal Radius
143 pm
Van der Waals radius
239 pm
densità
7.01 g/cm³
Atomic Radii Of The Elements: Neodimju[m]0102030405060708090100110120130140150160170180190200210220230240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

enerġija
proton affinity
electron affinity
ionization energy
ionization energy of Nd (Neodimju[m])
enthalpy of vaporization
289 kJ/mol
enthalpy of fusion
7.1 kJ/mol
standard enthalpy of formation
326.9 kJ/mol
elettron
electron shell2, 8, 18, 22, 8, 2
Bohr model: Nd (Neodimju[m])
valence electron2
Lewis structure: Nd (Neodimju[m])
electron configuration[Xe] 4f4 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f4 6s2
Enhanced Bohr model of Nd (Neodimju[m])
Orbital Diagram of Nd (Neodimju[m])
oxidation number0, 2, 3, 4
electronegativity
1.14
Electrophilicity Index
1.9177223954003881 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3,347.15 K
Melting Point
1,289.15 K
critical pressure
critical temperature
triple point
appearance
kulur
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0.0000096 1/K
molar heat capacity
27.45 J/(mol K)
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1.6 MS/m
electrical resistivity
0.00000064 m Ω
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0.00000048 m³/Kg
magnetic susceptibility (Molar)
0.000000069235 m³/mol
magnetic susceptibility (Volume)
0.0033648
magnetic ordering
Curie temperature
Néel temperature
19.2 K
structure
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3.66 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
32 GPa
shear modulus
16 GPa
Young's modulus
41 GPa
Poisson's ratio
0.28
speed of sound
2,330 m/s
classification
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number29
Mendeleev Number19
Pettifor Number30
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
208 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
49
Neutron Mass Absorption
0.011
quantum number5I4
space group194 (P63/mmc)

Isotopes of Neodymium

Stable Isotopes2
Unstable Isotopes38
Natural Isotopes7
Isotopic Composition14227.15%14227.15%14423.80%14423.80%14617.19%14617.19%14312.17%14312.17%1458.29%1458.29%1485.76%1485.76%1505.64%1505.64%

124Nd

mass number124
neutron number64
relative atomic mass
123.951873 ± 0.000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention
parity+

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

125Nd

mass number125
neutron number65
relative atomic mass
124.948395 ± 0.000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
650 ± 150 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1999
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0%

126Nd

mass number126
neutron number66
relative atomic mass
125.942694 ± 0.000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention2000
parity+

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

127Nd

mass number127
neutron number67
relative atomic mass
126.939978 ± 0.000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1.8 ± 0.4 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1983
parity+

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

128Nd

mass number128
neutron number68
relative atomic mass
127.935018 ± 0.000215 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1985
parity+

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

129Nd

mass number129
neutron number69
relative atomic mass
128.933038 ± 0.000217 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6.8 ± 0.6 s
spin7/2
nuclear quadrupole moment
time of discovery or invention1977
parity-

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

130Nd

mass number130
neutron number70
relative atomic mass
129.928506 ± 0.00003 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21 ± 3 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1977
parity+

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

131Nd

mass number131
neutron number71
relative atomic mass
130.92724802 ± 0.000029541 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
25.4 ± 0.9 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1977
parity+

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

132Nd

mass number132
neutron number72
relative atomic mass
131.923321237 ± 0.000025985 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1.56 ± 0.1 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1977
parity+

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

133Nd

mass number133
neutron number73
relative atomic mass
132.922348 ± 0.00005 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
70 ± 10 s
spin7/2
nuclear quadrupole moment
time of discovery or invention1977
parity+

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

134Nd

mass number134
neutron number74
relative atomic mass
133.918790207 ± 0.000012686 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
8.5 ± 1.5 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1970
parity+

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

135Nd

mass number135
neutron number75
relative atomic mass
134.918181318 ± 0.000020534 Da
g-factor
-0.17333333333333 ± 0.0066666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
12.4 ± 0.6 m
spin9/2
nuclear quadrupole moment
1.9 ± 0.5
time of discovery or invention1970
parity-

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

136Nd

mass number136
neutron number76
relative atomic mass
135.914976061 ± 0.000012686 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
50.65 ± 0.33 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1968
parity+

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

137Nd

mass number137
neutron number77
relative atomic mass
136.914563099 ± 0.000012586 Da
g-factor
-1.264 ± 0.01
natural abundance
radioactivity☢️ radioactive element
half-life
38.5 ± 1.5 m
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1970
parity+

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

138Nd

mass number138
neutron number78
relative atomic mass
137.911950938 ± 0.000012456 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5.04 ± 0.09 h
spin0
nuclear quadrupole moment
0
time of discovery or invention1965
parity+

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

139Nd

mass number139
neutron number79
relative atomic mass
138.911951208 ± 0.000029545 Da
g-factor
0.60333333333333 ± 0.0046666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
29.7 ± 0.5 m
spin3/2
nuclear quadrupole moment
0.28 ± 0.09
time of discovery or invention1951
parity+

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

140Nd

mass number140
neutron number80
relative atomic mass
139.90954613 ± 0.0000035 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3.37 ± 0.02 d
spin0
nuclear quadrupole moment
0
time of discovery or invention1949
parity+

decay modeintensity
ϵ (electron capture)100%

141Nd

mass number141
neutron number81
relative atomic mass
140.90961669 ± 0.000003417 Da
g-factor
0.67333333333333 ± 0.006
natural abundance
radioactivity☢️ radioactive element
half-life
2.49 ± 0.03 h
spin3/2
nuclear quadrupole moment
0.32 ± 0.13
time of discovery or invention1949
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
ϵ (electron capture)97.28%
e+ (positron emission)2.72%

142Nd

mass number142
neutron number82
relative atomic mass
141.907728824 ± 0.000001348 Da
g-factor
0
natural abundance
27.153 ± 0.04
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1924
parity+

143Nd

mass number143
neutron number83
relative atomic mass
142.909819815 ± 0.000001347 Da
g-factor
-0.30428571428571 ± 0.0014285714285714
natural abundance
12.173 ± 0.026
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
-0.61 ± 0.02
time of discovery or invention1933
parity-

144Nd

mass number144
neutron number84
relative atomic mass
143.910092798 ± 0.000001346 Da
g-factor
0
natural abundance
23.798 ± 0.019
radioactivity☢️ radioactive element
half-life
2.29 ± 0.16 Py
spin0
nuclear quadrupole moment
0
time of discovery or invention1924
parity+

decay modeintensity
α (α emission)100%

145Nd

mass number145
neutron number85
relative atomic mass
144.912579151 ± 0.000001364 Da
g-factor
-0.18742857142857 ± 0.0011428571428571
natural abundance
8.293 ± 0.012
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
-0.314 ± 0.012
time of discovery or invention1933
parity-

decay modeintensity
α (α emission)

146Nd

mass number146
neutron number86
relative atomic mass
145.913122459 ± 0.000001366 Da
g-factor
0
natural abundance
17.189 ± 0.032
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1924
parity+

decay modeintensity
(double β decay)
α (α emission)

147Nd

mass number147
neutron number87
relative atomic mass
146.916105969 ± 0.000001368 Da
g-factor
0.2216 ± 0.004
natural abundance
radioactivity☢️ radioactive element
half-life
10.98 ± 0.01 d
spin5/2
nuclear quadrupole moment
0.9 ± 0.3
time of discovery or invention1947
parity-

decay modeintensity
β (β decay)100%

148Nd

mass number148
neutron number88
relative atomic mass
147.916899027 ± 0.000002203 Da
g-factor
0
natural abundance
5.756 ± 0.021
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1937
parity+

decay modeintensity
(double β decay)
α (α emission)

149Nd

mass number149
neutron number89
relative atomic mass
148.920154583 ± 0.000002205 Da
g-factor
0.1404 ± 0.004
natural abundance
radioactivity☢️ radioactive element
half-life
1.728 ± 0.001 h
spin5/2
nuclear quadrupole moment
1.3 ± 0.3
time of discovery or invention1938
parity-

decay modeintensity
β (β decay)100%

150Nd

mass number150
neutron number90
relative atomic mass
149.920901322 ± 0.000001211 Da
g-factor
0
natural abundance
5.638 ± 0.028
radioactivity☢️ radioactive element
half-life
9.3 ± 0.7 Ey
spin0
nuclear quadrupole moment
0
time of discovery or invention1937
parity+

decay modeintensity
(double β decay)100%

151Nd

mass number151
neutron number91
relative atomic mass
150.923839363 ± 0.000001215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
12.44 ± 0.07 m
spin3/2
nuclear quadrupole moment
time of discovery or invention1938
parity+

decay modeintensity
β (β decay)100%

152Nd

mass number152
neutron number92
relative atomic mass
151.924691242 ± 0.000026276 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
11.4 ± 0.2 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1969
parity+

decay modeintensity
β (β decay)100%

153Nd

mass number153
neutron number93
relative atomic mass
152.927717868 ± 0.000002949 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
31.6 ± 1 s
spin3/2
nuclear quadrupole moment
time of discovery or invention1987
parity

decay modeintensity
β (β decay)100%

154Nd

mass number154
neutron number94
relative atomic mass
153.929597404 ± 0.0000011 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
25.9 ± 0.2 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1970
parity+

decay modeintensity
β (β decay)100%

155Nd

mass number155
neutron number95
relative atomic mass
154.933135598 ± 0.000009826 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8.9 ± 0.2 s
spin3/2
nuclear quadrupole moment
time of discovery or invention1986
parity-

decay modeintensity
β (β decay)100%

156Nd

mass number156
neutron number96
relative atomic mass
155.935370358 ± 0.0000014 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5.06 ± 0.13 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1987
parity+

decay modeintensity
β (β decay)100%

157Nd

mass number157
neutron number97
relative atomic mass
156.939351074 ± 0.000002294 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1.15 ± 0.03 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1992
parity-

decay modeintensity
β (β decay)100%

158Nd

mass number158
neutron number98
relative atomic mass
157.94220562 ± 0.0000014 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
810 ± 30 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1992
parity+

decay modeintensity
β (β decay)100%

159Nd

mass number159
neutron number99
relative atomic mass
158.946619085 ± 0.000032 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
500 ± 30 ms
spin7/2
nuclear quadrupole moment
time of discovery or invention2012
parity+

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

160Nd

mass number160
neutron number100
relative atomic mass
159.949839172 ± 0.00005 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
439 ± 37 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1985
parity+

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

161Nd

mass number161
neutron number101
relative atomic mass
160.954664 ± 0.000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
215 ± 76 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention2012
parity-

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

162Nd

mass number162
neutron number102
relative atomic mass
161.958121 ± 0.000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
310 ± 200 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2012
parity+

decay modeintensity
β (β decay)100%

163Nd

mass number163
neutron number103
relative atomic mass
162.963414 ± 0.000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
time of discovery or invention2018
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Neodym 1

storja

discoverer or inventorC.F. Aver von Welsbach
location of discoveryAustria
time of discovery or invention1925
etimoloġijaGreek: neos and didymos (new twin).
pronunciationnee-eh-DIM-i-em (Ingliż)

source

Abundance
Abundance in Earth's crust
41.5 mg/kg
natural abundance (ocean)
0.0000028 mg/L
natural abundance (human body)
natural abundance (meteoroid)
0.00005 %
natural abundance (Xemx)
0.0000003 %
Abundance in Universe
0.000001 %

Nuclear Screening Constants

1s1.1868
2p4.2434
2s15.7838
3d13.8432
3p19.311
3s19.6572
4d33.1908
4f37.734
4p29.986
4s29.0136
5p43.039
5s41.2575
6s50.6934