Template:Infobox molybdenum

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Molybdenum,  42Mo
Molybdenum crystaline fragment and 1cm3 cube.jpg
General properties
Name, symbol molybdenum, Mo
Pronunciation /ˌmɒlɪbˈdnəm/ or /məˈlɪbdɨnəm/
MOL-ib-DEE-nəm or mə-LIB-di-nəm
Appearance gray metallic
Molybdenum in the periodic table
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (post-transition metal)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Cr

Mo

W
niobiummolybdenumtechnetium
Atomic number 42
Standard atomic weight 95.95(1)
Element category transition metal
Group, period, block group 6, period 5, d-block
Electron configuration [Kr] 4d5 5s1
per shell 2, 8, 18, 13, 1
Physical properties
Phase solid
Melting point 2896 K ​(2623 °C, ​4753 °F)
Boiling point 4912 K ​(4639 °C, ​8382 °F)
Density (near r.t.) 10.28 g·cm−3 (at 0 °C, 101.325 kPa)
Liquid density at m.p.: 9.33 g·cm−3
Heat of fusion 37.48 kJ·mol−1
Heat of vaporization 598 kJ·mol−1
Molar heat capacity 24.06 J·mol−1·K−1

Vapor pressure

P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2742 2994 3312 3707 4212 4879
Atomic properties
Oxidation states 6, 5, 4, 3, 2, 1,[1] −1, −2 ​(a strongly acidic oxide)
Electronegativity 2.16 (Pauling scale)
Ionization energies 1st: 684.3 kJ·mol−1
2nd: 1560 kJ·mol−1
3rd: 2618 kJ·mol−1
Atomic radius empirical: 139 pm
Covalent radius 154±5 pm
Miscellanea
Crystal structure body-centered cubic (bcc)
Body-centered cubic crystal structure for molybdenum
Speed of sound thin rod: 5400 m·s−1 (at r.t.)
Thermal expansion 4.8 µm·m−1·K−1 (at 25 °C)
Thermal conductivity 138 W·m−1·K−1
Thermal diffusivity 54.3 mm2/s (at 300 K)[2]
Electrical resistivity at 20 °C: 53.4 nΩ·m
Magnetic ordering paramagnetic[3]
Young's modulus 329 GPa
Shear modulus 126 GPa
Bulk modulus 230 GPa
Poisson ratio 0.31
Mohs hardness 5.5
Vickers hardness 1530 MPa
Brinell hardness 1500 MPa
CAS Number 7439-98-7
History
Discovery Carl Wilhelm Scheele (1778)
First isolation Peter Jacob Hjelm (1781)
Most stable isotopes
Main article: Isotopes of molybdenum
iso NA half-life DM DE (MeV) DP
92Mo 14.84% >1.9×1020 y (β+β+) 1.6491 92Zr
93Mo syn 4×103 y ε - 93Nb
94Mo 9.25% - (SF) <4.485
95Mo 15.92% - (SF) <4.531
96Mo 16.68% - (SF) <5.771
97Mo 9.55% - (SF) <6.226
98Mo 24.13% >1×1014 y (ββ) 0.1125 98Ru
99Mo syn 65.94 h β 0.436, 1.214 99mTc
γ 0.74, 0.36,
0.14
-
100Mo 9.63% 7.8×1018 y ββ 3.04 100Ru
Decay modes in parentheses are predicted, but have not yet been observed
· references

References

These references will appear in the article, but this list appears only on this page.
  1. ^ "Molybdenum: molybdenum(I) fluoride compound data". OpenMOPAC.net. Retrieved 2007-12-10. 
  2. ^ A. Lindemann, J. Blumm (2009). "Measurement of the Thermophysical Properties of Pure Molybdenum". 17th Plansee Seminar 3. 
  3. ^ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
Documentation icon Template documentation[view] [edit] [history] [purge]

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References

These references will appear in the article, but this list appears only on this page.
  1. ^ Endt, P. M. (1990). "Energy levels of A = 21–44 nuclei (VII)". Nuclear Physics A 521: 1–400. Bibcode:1990NuPhA.521....1E. doi:10.1016/0375-9474(90)90598-G. 
  2. ^ Chisté 2006.

See also[edit]

Index to chemical element infoboxes
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 1H
ibox E
2He
ibox E
2 3Li
ibox E
4Be
ibox E
5B
ibox E
6C
ibox E
7N
ibox E
8O
ibox E
9F
ibox E
10Ne
ibox E
3 11Na
ibox E
12Mg
ibox E
13Al
ibox E
14Si
ibox E
15P
ibox E
16S
ibox E
17Cl
ibox E
18Ar
ibox E
4 19K
ibox E
20Ca
ibox E
21Sc
ibox E
22Ti
ibox E
23V
ibox E
24Cr
ibox E
25Mn
ibox E
26Fe
ibox E
27Co
ibox E
28Ni
ibox E
29Cu
ibox E
30Zn
ibox E
31Ga
ibox E
32Ge
ibox E
33As
ibox E
34Se
ibox E
35Br
ibox E
36Kr
ibox E
5 37Rb
ibox E
38Sr
ibox E
39Y
ibox E
40Zr
ibox E
41Nb
ibox E
42Mo
ibox E
43Tc
ibox E
44Ru
ibox E
45Rh
ibox E
46Pd
ibox E
47Ag
ibox E
48Cd
ibox E
49In
ibox E
50Sn
ibox E
51Sb
ibox E
52Te
ibox E
53 I 
ibox E
54Xe
ibox E
6 55Cs
ibox E
56Ba
ibox E
1 asterisk 72Hf
ibox E
73Ta
ibox E
74W
ibox E
75Re
ibox E
76Os
ibox E
77Ir
ibox E
78Pt
ibox E
79Au
ibox E
80Hg
ibox E
81Tl
ibox E
82Pb
ibox E
83Bi
ibox E
84Po
ibox E
85At
ibox E
86Rn
ibox E
7 87Fr
ibox E
88Ra
ibox E
1 asterisk 104Rf
ibox E
105Db
ibox E
106Sg
ibox E
107Bh
ibox E
108Hs
ibox E
109Mt
ibox E
110Ds
ibox E
111Rg
ibox E
112Cn
ibox E
113Uut
ibox E
114Fl
ibox E
115Uup
ibox E
116Lv
ibox E
117Uus
ibox E
118Uuo
ibox E
8 119Uue
ibox E
120Ubn
ibox E
1 asterisk 57La
ibox E
58Ce
ibox E
59Pr
ibox E
60Nd
ibox E
61Pm
ibox E
62Sm
ibox E
63Eu
ibox E
64Gd
ibox E
65Tb
ibox E
66Dy
ibox E
67Ho
ibox E
68Er
ibox E
69Tm
ibox E
70Yb
ibox E
71Lu
ibox E
 
1 asterisk 89Ac
ibox E
90Th
ibox E
91Pa
ibox E
92U
ibox E
93Np
ibox E
94Pu
ibox E
95Am
ibox E
96Cm
ibox E
97Bk
ibox E
98Cf
ibox E
99Es
ibox E
100Fm
ibox E
101Md
ibox E
102No
ibox E
103Lr
ibox E
 
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