Molibdèn

Molibdèn (Mo)

chemical element with symbol Mo and atomic number 42
Atomic Number42
Atomic Weight95.95
Rhif màs98
Group6
Period5
Blockd
Proton42 p+
Niwtron56 n0
Electron42 e-
Animated Bohr model of Mo (Molibdèn)

Nodwedd Ffisegol

Atomic Radius
145 pm
molar volume
covalent radius
138 pm
Metallic Radius
130 pm
ionic radius
69 pm
Crystal Radius
83 pm
Van der Waals radius
217 pm
density
10.2 g/cm³
Atomic Radii Of The Elements: Molibdèn0102030405060708090100110120130140150160170180190200210220pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Nodwedd Gemegol

egni
proton affinity
electron affinity
ionization energy
7.09243 eV/particle
ionization energy of Mo (Molibdèn)
enthalpy of vaporization
590 kJ/mol
enthalpy of fusion
standard enthalpy of formation
658.98 kJ/mol
Electron
plisgyn yr electron2, 8, 18, 13, 1
Bohr model: Mo (Molibdèn)
valence electron1
Lewis structure: Mo (Molibdèn)
trefn yr electronnau[Kr] 4d5 5s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d5 5s1
Enhanced Bohr model of Mo (Molibdèn)
Orbital Diagram of Mo (Molibdèn)
Cyflwr ocsidiad-4, -2, -1, 0, 1, 2, 3, 4, 5, 6
Electronegatifedd
2.16
Electrophilicity Index
1.2111478608972754 eV/particle
cyflwr sylfaenol mater
cyflwr materSolid
gaseous state of matter
Boiling Point
4,912.15 K
Melting Point
2,895.15 K
critical pressure
critical temperature
triple point
appearance
lliw
Gray
appearancegray metallic
Mynegrif plygiant
nodwedd ffisegol gwrthrych
Thermal Conductivity
thermal expansion
0.0000048 1/K
molar heat capacity
24.06 J/(mol K)
Specific Heat Capacity
0.251 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
dargludedd trydanol
20 MS/m
Gwrthedd
0.00000004999999999997 m Ω
superconductivity
0.915 K
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0.0000000117 m³/Kg
magnetic susceptibility (Molar)
0.000000001122 m³/mol
magnetic susceptibility (Volume)
0.0001203
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal StructureBody Centered Cubic (BCC)
lattice constant
3.15 Å
Lattice Anglesπ/2, π/2, π/2
nodwedd mecanyddol deunyddiau
hardness
5.5 MPa
bulk modulus
230 GPa
shear modulus
120 GPa
Young's modulus
329 GPa
Poisson's ratio
0.31
speed of sound
6,190 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupVIA
IUPAC GroupVIB
Glawe Number56
Mendeleev Number52
Pettifor Number55
Geochemical Class
Goldschmidt classificationsiderophile

other

Gas Basicity
polarizability
87 ± 6 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
2.6
Neutron Mass Absorption
0.0009
quantum number7S3
space group229 (Im_3m)

Isotopes of Molybdenum

Stable Isotopes4
Unstable Isotopes35
Natural Isotopes7
Isotopic Composition9824.29%9824.29%9515.87%9515.87%9616.67%9616.67%9214.65%9214.65%949.19%949.19%979.58%979.58%1009.74%1009.74%

81Mo

Rhif màs81
neutron number39
relative atomic mass
80.966226 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin5/2
nuclear quadrupole moment
dyddiad darganfod2013
parity+

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

82Mo

Rhif màs82
neutron number40
relative atomic mass
81.956661 ± 0.000429 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod2013
parity+

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

83Mo

Rhif màs83
neutron number41
relative atomic mass
82.950252 ± 0.00043 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
23 ± 19 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1999
parity-

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

84Mo

Rhif màs84
neutron number42
relative atomic mass
83.941846 ± 0.00032 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.3 ± 0.3 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1991
parity+

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

85Mo

Rhif màs85
neutron number43
relative atomic mass
84.938260736 ± 0.000017 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.2 ± 0.2 s
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1992
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.14%

86Mo

Rhif màs86
neutron number44
relative atomic mass
85.931174092 ± 0.000003147 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
19.1 ± 0.3 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1991
parity+

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

87Mo

Rhif màs87
neutron number45
relative atomic mass
86.928196198 ± 0.000003067 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
14.1 ± 0.3 s
spin7/2
nuclear quadrupole moment
dyddiad darganfod1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)15%

88Mo

Rhif màs88
neutron number46
relative atomic mass
87.921967779 ± 0.0000041 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8 ± 0.2 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1971
parity+

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

89Mo

Rhif màs89
neutron number47
relative atomic mass
88.919468149 ± 0.0000042 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.11 ± 0.1 m
spin9/2
nuclear quadrupole moment
dyddiad darganfod1980
parity+

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

90Mo

Rhif màs90
neutron number48
relative atomic mass
89.91393127 ± 0.000003717 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
5.56 ± 0.09 h
spin0
nuclear quadrupole moment
0
dyddiad darganfod1953
parity+

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

91Mo

Rhif màs91
neutron number49
relative atomic mass
90.91174519 ± 0.000006696 Da
g-factor
-0.20688888888889 ± 0.00066666666666667
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
15.49 ± 0.01 m
spin9/2
nuclear quadrupole moment
dyddiad darganfod1948
parity+

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

92Mo

Rhif màs92
neutron number50
relative atomic mass
91.906807153 ± 0.000000168 Da
g-factor
0
natural abundance
14.649 ± 0.106
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1930
parity+

decay modeintensity
+ (double β+ decay)

93Mo

Rhif màs93
neutron number51
relative atomic mass
92.906808772 ± 0.000000193 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4 ± 0.8 ky
spin5/2
nuclear quadrupole moment
dyddiad darganfod1946
parity+

decay modeintensity
ϵ (electron capture)100%

94Mo

Rhif màs94
neutron number52
relative atomic mass
93.905083586 ± 0.000000151 Da
g-factor
0
natural abundance
9.187 ± 0.033
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1930
parity+

95Mo

Rhif màs95
neutron number53
relative atomic mass
94.905837436 ± 0.000000132 Da
g-factor
natural abundance
15.873 ± 0.03
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
-0.022 ± 0.001
dyddiad darganfod1930
parity+

96Mo

Rhif màs96
neutron number54
relative atomic mass
95.90467477 ± 0.000000128 Da
g-factor
0
natural abundance
16.673 ± 0.008
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1930
parity+

97Mo

Rhif màs97
neutron number55
relative atomic mass
96.906016903 ± 0.000000176 Da
g-factor
natural abundance
9.582 ± 0.015
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
0.255 ± 0.013
dyddiad darganfod1930
parity+

98Mo

Rhif màs98
neutron number56
relative atomic mass
97.905403609 ± 0.000000186 Da
g-factor
0
natural abundance
24.292 ± 0.08
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1930
parity+

decay modeintensity
(double β decay)

99Mo

Rhif màs99
neutron number57
relative atomic mass
98.907707299 ± 0.000000245 Da
g-factor
0.75 ± 0.006
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
65.932 ± 0.005 h
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1948
parity+

decay modeintensity
β (β decay)100%

100Mo

Rhif màs100
neutron number58
relative atomic mass
99.907467982 ± 0.000000322 Da
g-factor
0
natural abundance
9.744 ± 0.065
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.07 ± 0.14 Ey
spin0
nuclear quadrupole moment
0
dyddiad darganfod1930
parity+

decay modeintensity
(double β decay)100%

101Mo

Rhif màs101
neutron number59
relative atomic mass
100.910337648 ± 0.000000331 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
14.61 ± 0.03 m
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1941
parity+

decay modeintensity
β (β decay)100%

102Mo

Rhif màs102
neutron number60
relative atomic mass
101.910293725 ± 0.000008916 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
11.3 ± 0.2 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1954
parity+

decay modeintensity
β (β decay)100%

103Mo

Rhif màs103
neutron number61
relative atomic mass
102.913091954 ± 0.0000099 Da
g-factor
-0.18 ± 0.013333333333333
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
67.5 ± 1.5 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1963
parity+

decay modeintensity
β (β decay)100%

104Mo

Rhif màs104
neutron number62
relative atomic mass
103.913747443 ± 0.000009566 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
60 ± 2 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1962
parity+

decay modeintensity
β (β decay)100%

105Mo

Rhif màs105
neutron number63
relative atomic mass
104.916981989 ± 0.000009721 Da
g-factor
-0.22 ± 0.008
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
36.3 ± 0.8 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1962
parity-

decay modeintensity
β (β decay)100%

106Mo

Rhif màs106
neutron number64
relative atomic mass
105.918273231 ± 0.000009801 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8.73 ± 0.12 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1969
parity+

decay modeintensity
β (β decay)100%

107Mo

Rhif màs107
neutron number65
relative atomic mass
106.92211977 ± 0.000009901 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.5 ± 0.5 s
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1972
parity+

decay modeintensity
β (β decay)100%

108Mo

Rhif màs108
neutron number66
relative atomic mass
107.924047508 ± 0.000009901 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.105 ± 0.01 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1972
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.5%

109Mo

Rhif màs109
neutron number67
relative atomic mass
108.928438318 ± 0.000012 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
700 ± 14 ms
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1992
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.3%

110Mo

Rhif màs110
neutron number68
relative atomic mass
109.930717956 ± 0.000026 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
292 ± 7 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1992
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2%

111Mo

Rhif màs111
neutron number69
relative atomic mass
110.935651966 ± 0.000013503 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
193.6 ± 4.4 ms
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)12%

112Mo

Rhif màs112
neutron number70
relative atomic mass
111.938293 ± 0.000215 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
125 ± 5 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1994
parity+

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

113Mo

Rhif màs113
neutron number71
relative atomic mass
112.943478 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
80 ± 2 ms
spin5/2
nuclear quadrupole moment
dyddiad darganfod1994
parity+

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

114Mo

Rhif màs114
neutron number72
relative atomic mass
113.946666 ± 0.000322 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
58 ± 2 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1997
parity+

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

115Mo

Rhif màs115
neutron number73
relative atomic mass
114.952174 ± 0.000429 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
45.5 ± 2 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

116Mo

Rhif màs116
neutron number74
relative atomic mass
115.955759 ± 0.000537 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
32 ± 4 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

117Mo

Rhif màs117
neutron number75
relative atomic mass
116.961686 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
22 ± 5 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

118Mo

Rhif màs118
neutron number76
relative atomic mass
117.965249 ± 0.000537 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
21 ± 6 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod2015
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

119Mo

Rhif màs119
neutron number77
relative atomic mass
118.971465 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin3/2
nuclear quadrupole moment
dyddiad darganfod2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Molybdenum crystaline fragment and 1cm3 cube

hanes

darganfyddwr neu ddyfeisiwrCarl Wilhelm Scheele
man darganfodSweden
dyddiad darganfod1778
geirdarddiadGreek: molybdos (lead).
ynganiadmeh-LIB-deh-nem (Saesneg)

source

Abundance
Abundance in Earth's crust
1.2 mg/kg
natural abundance (cefnfor)
0.01 mg/L
natural abundance (corff dynol)
0.00001 %
natural abundance (Awyrfaen)
0.00012 %
natural abundance (Haul)
0.0000009 %
Abundance in Universe
0.0000005 %

Nuclear Screening Constants

1s0.8744
2p4.0282
2s11.1232
3d14.7717
3p16.5264
3s16.0185
4d30.6076
4p27.0232
4s25.9036
5s35.894