Template:Infobox iridium

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Iridium,  77Ir
Two square pieces of gray foil
General properties
Name, symbol iridium, Ir
Pronunciation /ɨˈrɪdiəm/
i-RID-ee-əm
Appearance silvery white
Iridium 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)
Rh

Ir

Mt
osmiumiridiumplatinum
Atomic number 77
Standard atomic weight (±) 192.217(3)
Element category transition metal
Group, block group 9, d-block
Period period 6
Electron configuration [Xe] 4f14 5d7 6s2
per shell 2, 8, 18, 32, 15, 2
Physical properties
Phase solid
Melting point 2719 K ​(2446 °C, ​4435 °F)
Boiling point 4403 K ​(4130 °C, ​7466 °F)
Density near r.t. 22.56 g·cm−3
when liquid, at m.p. 19 g·cm−3
Heat of fusion 41.12 kJ·mol−1
Heat of vaporization 564 kJ·mol−1
Molar heat capacity 25.10 J·mol−1·K−1
vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2713 2957 3252 3614 4069 4659
Atomic properties
Oxidation states −3, −1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9[1]
Electronegativity Pauling scale: 2.20
Ionization energies 1st: 880 kJ·mol−1
2nd: 1600 kJ·mol−1
Atomic radius empirical: 136 pm
Covalent radius 141±6 pm
Miscellanea
Crystal structure face-centered cubic (fcc)
Face-centered cubic crystal structure for iridium
Speed of sound thin rod 4825 m·s−1 (at 20 °C)
Thermal expansion 6.4 µm·m−1·K−1
Thermal conductivity 147 W·m−1·K−1
Electrical resistivity 47.1 nΩ·m (at 20 °C)
Magnetic ordering paramagnetic[2]
Young's modulus 528 GPa
Shear modulus 210 GPa
Bulk modulus 320 GPa
Poisson ratio 0.26
Mohs hardness 6.5
Vickers hardness 1760–2200 MPa
Brinell hardness 1670 MPa
CAS Registry Number 7439-88-5
History
Discovery and first isolation Smithson Tennant (1803)
Most stable isotopes
Main article: Isotopes of iridium
iso NA half-life DM DE (MeV) DP
188Ir syn 1.73 d ε 1.64 188Os
189Ir syn 13.2 d ε 0.532 189Os
190Ir syn 11.8 d ε 2.000 190Os
191Ir 37.3% (α) 2.0839 187Re
192Ir syn 73.827 d β 1.460 192Pt
ε 1.046 192Os
192m2Ir syn 241 y IT 0.161 192Ir
193Ir 62.7% (α) 1.0173 189Re
193mIr syn 10.5 d IT 0.080 193Ir
194Ir syn 19.3 h β 2.247 194Pt
194m2Ir syn 171 d IT 194Ir
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. ^ Wang, Guanjun; Zhou, Mingfei; Goettel, James T.; Schrobilgen, Gary G.; Su, Jing; Li, Jun; Schlöder, Tobias; Riedel, Sebastian (2014). "Identification of an iridium-containing compound with a formal oxidation state of IX". Nature 514: 475–477. doi:10.1038/nature13795. 
  2. ^ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. 
Documentation icon Template documentation[view] [edit] [history] [purge]

Infoboxes for the chemical elements use the core template {{Infobox element}}.

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ionization energy
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ionization energy 3

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References

These references will appear in the article, but this list appears only on this page.
  1. ^ Endt, P. M. "Energy levels of A = 21–44 nuclei (VII)". Nuclear Physics A. 
  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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