Template:Infobox tantalum

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Tantalum
73Ta
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)
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Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
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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)
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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)
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Technetium (transition metal)
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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 (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Nb

Ta

Db
hafniumtantalumtungsten
Tantalum in the periodic table
Appearance
gray blue


Spectral lines of tantalum (400 nm - 700 nm)
General properties
Name, symbol, number tantalum, Ta, 73
Pronunciation /ˈtæntələm/
TAN-təl-əm;
previously /tænˈtæliəm/
tan-TAL-ee-əm
Element category transition metal
Group, period, block 5, 6, d
Standard atomic weight 180.94788(2)
Electron configuration [Xe] 4f14 5d3 6s2
2, 8, 18, 32, 11, 2
Physical properties
Phase solid
Density (near r.t.) 16.69 g·cm−3
Liquid density at m.p. 15 g·cm−3
Melting point 3290 K, 3017 °C, 5463 °F
Boiling point 5731 K, 5458 °C, 9856 °F
Heat of fusion 36.57 kJ·mol−1
Heat of vaporization 753 kJ·mol−1
Molar heat capacity 25.36 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 3297 3597 3957 4395 4939 5634
Atomic properties
Oxidation states 5, 4, 3, 2, −1 (mildly acidic oxide)
Electronegativity 1.5 (Pauling scale)
Ionization energies 1st: 761 kJ·mol−1
2nd: 1500 kJ·mol−1
Atomic radius 146 pm
Covalent radius 170±8 pm
Miscellanea
Crystal structure body-centered cubic[1]
Tantalum has a body-centered cubic crystal structure

α-Ta
tetragonal[1]
Tantalum has a tetragonal crystal structure

β-Ta
Magnetic ordering paramagnetic[2]
Electrical resistivity (20 °C) 131 nΩ·m
Thermal conductivity 57.5 W·m−1·K−1
Thermal expansion (25 °C) 6.3 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 3400 m·s−1
Young's modulus 186 GPa
Shear modulus 69 GPa
Bulk modulus 200 GPa
Poisson ratio 0.34
Mohs hardness 6.5
Vickers hardness 873 MPa
Brinell hardness 800 MPa
CAS registry number 7440-25-7
History
Discovery Anders Gustaf Ekeberg (1802)
Recognized as a distinct element by Heinrich Rose (1844)
Most stable isotopes
Main article: Isotopes of tantalum
iso NA half-life DM DE (MeV) DP
177Ta syn 56.56 h ε 1.166 177Hf
178Ta syn 2.36 h ε 1.910 178Hf
179Ta syn 1.82 y ε 0.110 179Hf
180Ta syn 8.125 h ε 0.854 180Hf
β 0.708 180W
180mTa 0.012% >1.2×1015 y (ε) 0.929 180Hf
(β) 0.783 180W
(IT) 0.075 180Ta
(α) 2.103 176Lu
181Ta 99.988% - (α) 1.5259 177Lu
182Ta syn 114.43 d β 1.814 182W
183Ta syn 5.1 d β 1.070 183W
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. ^ a b Moseley, P. T.; Seabrook, C. J. (1973). "The crystal structure of β-tantalum". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 29 (5): 1170–1171. doi:10.1107/S0567740873004140.  edit
  2. ^ 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]

This infobox is used for chemical elements. {{Infobox element}} is the core template.

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Atomic number 119 and above[edit]

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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
/s /t
2He
ibox E
/s /t
2 3Li
ibox E
/s /t
4Be
ibox E
/s /t
5B
ibox E
/s /t
6C
ibox E
/s /t
7N
ibox E
/s /t
8O
ibox E
/s /t
9F
ibox E
/s /t
10Ne
ibox E
/s /t
3 11Na
ibox E
/s /t
12Mg
ibox E
/s /t
13Al
ibox E
/s /t
14Si
ibox E
/s /t
15P
ibox E
/s /t
16S
ibox E
/s /t
17Cl
ibox E
/s /t
18Ar
ibox E
/s /t
4 19K
ibox E
/s /t
20Ca
ibox E
/s /t
21Sc
ibox E
/s /t
22Ti
ibox E
/s /t
23V
ibox E
/s /t
24Cr
ibox E
/s /t
25Mn
ibox E
/s /t
26Fe
ibox E
/s /t
27Co
ibox E
/s /t
28Ni
ibox E
/s /t
29Cu
ibox E
/s /t
30Zn
ibox E
/s /t
31Ga
ibox E
/s /t
32Ge
ibox E
/s /t
33As
ibox E
/s /t
34Se
ibox E
/s /t
35Br
ibox E
/s /t
36Kr
ibox E
/s /t
5 37Rb
ibox E
/s /t
38Sr
ibox E
/s /t
39Y
ibox E
/s /t
40Zr
ibox E
/s /t
41Nb
ibox E
/s /t
42Mo
ibox E
/s /t
43Tc
ibox E
/s /t
44Ru
ibox E
/s /t
45Rh
ibox E
/s /t
46Pd
ibox E
/s /t
47Ag
ibox E
/s /t
48Cd
ibox E
/s /t
49In
ibox E
/s /t
50Sn
ibox E
/s /t
51Sb
ibox E
/s /t
52Te
ibox E
/s /t
53 I 
ibox E
/s /t
54Xe
ibox E
/s /t
6 55Cs
ibox E
/s /t
56Ba
ibox E
/s /t
1 asterisk 72Hf
ibox E
/s /t
73Ta
ibox E
/s /t
74W
ibox E
/s /t
75Re
ibox E
/s /t
76Os
ibox E
/s /t
77Ir
ibox E
/s /t
78Pt
ibox E
/s /t
79Au
ibox E
/s /t
80Hg
ibox E
/s /t
81Tl
ibox E
/s /t
82Pb
ibox E
/s /t
83Bi
ibox E
/s /t
84Po
ibox E
/s /t
85At
ibox E
/s /t
86Rn
ibox E
/s /t
7 87Fr
ibox E
/s /t
88Ra
ibox E
/s /t
1 asterisk 104Rf
ibox E
/s /t
105Db
ibox E
/s /t
106Sg
ibox E
/s /t
107Bh
ibox E
/s /t
108Hs
ibox E
/s /t
109Mt
ibox E
/s /t
110Ds
ibox E
/s /t
111Rg
ibox E
/s /t
112Cn
ibox E
/s /t
113Uut
ibox E
/s /t
114Fl
ibox E
/s /t
115Uup
ibox E
/s /t
116Lv
ibox E
/s /t
117Uus
ibox E
/s /t
118Uuo
ibox E
/s /t
Extended 119E119
ibox E
/s /t
120E120
ibox E
/s /t
121E121
ibox E
/s /t
122E122
ibox E
/s /t
124E124
ibox E
/s /t
126E126
ibox E
/s /t
127E127
ibox E
/s /t
1 asterisk 57La
ibox E
/s /t
58Ce
ibox E
/s /t
59Pr
ibox E
/s /t
60Nd
ibox E
/s /t
61Pm
ibox E
/s /t
62Sm
ibox E
/s /t
63Eu
ibox E
/s /t
64Gd
ibox E
/s /t
65Tb
ibox E
/s /t
66Dy
ibox E
/s /t
67Ho
ibox E
/s /t
68Er
ibox E
/s /t
69Tm
ibox E
/s /t
70Yb
ibox E
/s /t
71Lu
ibox E
/s /t
 
1 asterisk 89Ac
ibox E
/s /t
90Th
ibox E
/s /t
91Pa
ibox E
/s /t
92U
ibox E
/s /t
93Np
ibox E
/s /t
94Pu
ibox E
/s /t
95Am
ibox E
/s /t
96Cm
ibox E
/s /t
97Bk
ibox E
/s /t
98Cf
ibox E
/s /t
99Es
ibox E
/s /t
100Fm
ibox E
/s /t
101Md
ibox E
/s /t
102No
ibox E
/s /t
103Lr
ibox E
/s /t
 
Category:Periodic table infobox templates (by element) · Category:Infobox element templates (subtemplates)
Sandboxes: {{Infobox element/sandbox}} · {{Infobox element/testcases}}
  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.