Îrîdyûm

Îrîdyûm (Ir)

chemical element with symbol Ir and atomic number 77
Atomic Number77
Atomic Weight192.217
Hejmara baristeyî193
Group9
Period6
Blockd
Proton77 p+
Notron116 n0
Kareva77 e-
Animated Bohr model of Ir (Îrîdyûm)

Physical Property

Atomic Radius
135 pm
molar volume
Covalent Radius
122 pm
Metallic Radius
127 pm
ionic radius
68 pm
Crystal Radius
82 pm
Van der Waals radius
213 pm
density
22,5622 g/cm³
Atomic Radii Of The Elements: Îrîdyûm0102030405060708090100110120130140150160170180190200210220pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
8,96702 eV/particle
ionization energy of Ir (Îrîdyûm)
enthalpy of vaporization
604 kJ/mol
enthalpy of fusion
27,61 kJ/mol
standard enthalpy of formation
669 kJ/mol
Kareva
electron shell2, 8, 18, 32, 15, 2
Bohr model: Ir (Îrîdyûm)
valence electron2
Lewis structure: Ir (Îrîdyûm)
electron configuration[Xe] 4f14 5d7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d7 6s2
Enhanced Bohr model of Ir (Îrîdyûm)
Orbital Diagram of Ir (Îrîdyûm)
oxidation number-3, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
electronegativity
2.2
Electrophilicity Index
1,872465121129725 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
4.701,15 K
Melting Point
2.719,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000064 1/K
molar heat capacity
Specific Heat Capacity
0,131 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
21 MS/m
electrical resistivity
0,00000004699999999998 m Ω
superconductivity
0,11 K
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0,00000000167 m³/Kg
magnetic susceptibility (Molar)
0,000000000321 m³/mol
magnetic susceptibility (Volume)
0,0000377
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureFace Centered Cubic (FCC)
lattice constant
3,84 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
6,5 MPa
bulk modulus
320 GPa
shear modulus
210 GPa
Young's modulus
528 GPa
Poisson's ratio
0,26
Leza dengê
4.825 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number62
Mendeleev Number65
Pettifor Number65
Geochemical Classnoble metal
Goldschmidt classificationsiderophile

other

Gas Basicity
polarizability
54 ± 7 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
425
Neutron Mass Absorption
0,081
quantum number4F9/2
space group225 (Fm_3m)

Isotopes of Iridium

Stable Isotopes2
Unstable Isotopes41
Natural Isotopes2
Isotopic Composition19362.70%19362.70%19137.30%19137.30%

163Ir

Hejmara baristeyî163
neutron number86
Giraniya atomê
162,994299 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

decay modeintensity
p (proton emission)

164Ir

Hejmara baristeyî164
neutron number87
Giraniya atomê
163,991966 ± 0,000339 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê
parity-

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

165Ir

Hejmara baristeyî165
neutron number88
Giraniya atomê
164,987552 ± 0,00017 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

decay modeintensity
p (proton emission)
α (α emission)

166Ir

Hejmara baristeyî166
neutron number89
Giraniya atomê
165,985716 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,5 ± 2,2 ms
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1981
parity

decay modeintensity
α (α emission)93%
p (proton emission)7%

167Ir

Hejmara baristeyî167
neutron number90
Giraniya atomê
166,981671973 ± 0,000019694 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
29,3 ± 0,6 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1981
parity+

decay modeintensity
α (α emission)43.5%
p (proton emission)38.6%
β+ (β+ decay; β+ = ϵ + e+)

168Ir

Hejmara baristeyî168
neutron number91
Giraniya atomê
167,979960978 ± 0,000059277 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
230 ± 50 ms
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1978
parity

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

169Ir

Hejmara baristeyî169
neutron number92
Giraniya atomê
168,976281743 ± 0,00002502 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
353 ± 4 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1978
parity+

decay modeintensity
α (α emission)53%
β+ (β+ decay; β+ = ϵ + e+)

170Ir

Hejmara baristeyî170
neutron number93
Giraniya atomê
169,975113 ± 0,000109 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
910 ± 150 ms
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1977
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)5.2%

171Ir

Hejmara baristeyî171
neutron number94
Giraniya atomê
170,97164552 ± 0,000041295 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,1 ± 0,3 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)15%

172Ir

Hejmara baristeyî172
neutron number95
Giraniya atomê
171,970607035 ± 0,000034785 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,4 ± 0,3 s
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98%
α (α emission)2%

173Ir

Hejmara baristeyî173
neutron number96
Giraniya atomê
172,967505477 ± 0,000011316 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9 ± 0,8 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)96.5%
α (α emission)3.5%

174Ir

Hejmara baristeyî174
neutron number97
Giraniya atomê
173,966949939 ± 0,000012046 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7,9 ± 0,6 s
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.5%
α (α emission)0.5%

175Ir

Hejmara baristeyî175
neutron number98
Giraniya atomê
174,964149519 ± 0,000013295 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9 ± 2 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.15%
α (α emission)0.85%

176Ir

Hejmara baristeyî176
neutron number99
Giraniya atomê
175,963626261 ± 0,000008679 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8,7 ± 0,5 s
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)96.9%
α (α emission)3.1%

177Ir

Hejmara baristeyî177
neutron number100
Giraniya atomê
176,9613015 ± 0,000021213 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
29,8 ± 1,7 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.06%

178Ir

Hejmara baristeyî178
neutron number101
Giraniya atomê
177,961079395 ± 0,000020204 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
12 ± 2 s
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity+

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

179Ir

Hejmara baristeyî179
neutron number102
Giraniya atomê
178,959117594 ± 0,000010489 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
79 ± 1 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1992
parity

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

180Ir

Hejmara baristeyî180
neutron number103
Giraniya atomê
179,959229446 ± 0,000023302 Da
g-factor
0,5 ± 0,04
natural abundance
radioactivity☢️ radioactive element
half-life
1,5 ± 0,1 m
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity+

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

181Ir

Hejmara baristeyî181
neutron number104
Giraniya atomê
180,957634691 ± 0,000005631 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,9 ± 0,15 m
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity-

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

182Ir

Hejmara baristeyî182
neutron number105
Giraniya atomê
181,958076296 ± 0,000022509 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
15 ± 1 m
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1961
parity+

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

183Ir

Hejmara baristeyî183
neutron number106
Giraniya atomê
182,956841231 ± 0,000026486 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
58 ± 5 m
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1961
parity-

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

184Ir

Hejmara baristeyî184
neutron number107
Giraniya atomê
183,957476 ± 0,00003 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,09 ± 0,03 h
spin5
nuclear quadrupole moment
2,41 ± 0,03
dema îcadkirinê yan keşfê1960
parity-

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

185Ir

Hejmara baristeyî185
neutron number108
Giraniya atomê
184,956698 ± 0,00003 Da
g-factor
1,0384 ± 0,0052
natural abundance
radioactivity☢️ radioactive element
half-life
14,4 ± 0,1 h
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1958
parity-

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

186Ir

Hejmara baristeyî186
neutron number109
Giraniya atomê
185,957946754 ± 0,00001774 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
16,64 ± 0,03 h
spin5
nuclear quadrupole moment
-2,55 ± 0,03
dema îcadkirinê yan keşfê1958
parity+

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

187Ir

Hejmara baristeyî187
neutron number110
Giraniya atomê
186,957542 ± 0,00003 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,5 ± 0,3 h
spin3/2
nuclear quadrupole moment
0,941 ± 0,011
dema îcadkirinê yan keşfê1958
parity+

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

188Ir

Hejmara baristeyî188
neutron number111
Giraniya atomê
187,958834999 ± 0,000010116 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
41,5 ± 0,5 h
spin1
nuclear quadrupole moment
0,484 ± 0,006
dema îcadkirinê yan keşfê1950
parity-

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

189Ir

Hejmara baristeyî189
neutron number112
Giraniya atomê
188,958722602 ± 0,0000135 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
13,2 ± 0,1 d
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1955
parity+

decay modeintensity
ϵ (electron capture)100%

190Ir

Hejmara baristeyî190
neutron number113
Giraniya atomê
189,960543374 ± 0,00000147 Da
g-factor
0,01 ± 0,0025
natural abundance
radioactivity☢️ radioactive element
half-life
11,78 ± 0,1 d
spin4
nuclear quadrupole moment
2,87 ± 0,16
dema îcadkirinê yan keşfê1947
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)0.002%

191Ir

Hejmara baristeyî191
neutron number114
Giraniya atomê
190,960591455 ± 0,000001406 Da
g-factor
0,10013333333333 ± 0,0004
natural abundance
37,3 ± 0,2
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,816 ± 0,009
dema îcadkirinê yan keşfê1935
parity+

192Ir

Hejmara baristeyî192
neutron number115
Giraniya atomê
191,962602414 ± 0,00000141 Da
g-factor
0,47925 ± 0,0025
natural abundance
radioactivity☢️ radioactive element
half-life
73,82 ± 0,014 d
spin4
nuclear quadrupole moment
2,15 ± 0,06
dema îcadkirinê yan keşfê1937
parity+

decay modeintensity
β (β decay)95.24%
ϵ (electron capture)4.76%

193Ir

Hejmara baristeyî193
neutron number116
Giraniya atomê
192,962923753 ± 0,000001425 Da
g-factor
0,10866666666667 ± 0,0004
natural abundance
62,7 ± 0,2
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,751 ± 0,009
dema îcadkirinê yan keşfê1935
parity+

194Ir

Hejmara baristeyî194
neutron number117
Giraniya atomê
193,965075703 ± 0,000001429 Da
g-factor
0,39 ± 0,01
natural abundance
radioactivity☢️ radioactive element
half-life
19,35 ± 0,07 h
spin1
nuclear quadrupole moment
0,339 ± 0,012
dema îcadkirinê yan keşfê1937
parity-

decay modeintensity
β (β decay)100%

195Ir

Hejmara baristeyî195
neutron number118
Giraniya atomê
194,965976898 ± 0,000001431 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,29 ± 0,17 h
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1952
parity+

decay modeintensity
β (β decay)100%

196Ir

Hejmara baristeyî196
neutron number119
Giraniya atomê
195,968399669 ± 0,000041239 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
52 ± 1,1 s
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1966
parity

decay modeintensity
β (β decay)100%

197Ir

Hejmara baristeyî197
neutron number120
Giraniya atomê
196,969657217 ± 0,000021588 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5,8 ± 0,5 m
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1952
parity+

decay modeintensity
β (β decay)100%

198Ir

Hejmara baristeyî198
neutron number121
Giraniya atomê
197,972399 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8,7 ± 0,4 s
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1973
parity-

decay modeintensity
β (β decay)100%

199Ir

Hejmara baristeyî199
neutron number122
Giraniya atomê
198,973807097 ± 0,000044073 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7 ± 5 s
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1993
parity+

decay modeintensity
β (β decay)100%

200Ir

Hejmara baristeyî200
neutron number123
Giraniya atomê
199,976844 ± 0,00021 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
43 ± 6 s
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2008
parity-

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

201Ir

Hejmara baristeyî201
neutron number124
Giraniya atomê
200,978701 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
21 ± 5 s
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2008
parity+

decay modeintensity
β (β decay)100%

202Ir

Hejmara baristeyî202
neutron number125
Giraniya atomê
201,982136 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
11 ± 3 s
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2008
parity-

decay modeintensity
β (β decay)100%

203Ir

Hejmara baristeyî203
neutron number126
Giraniya atomê
202,984573 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2009
parity+

decay modeintensity
β (β decay)

204Ir

Hejmara baristeyî204
neutron number127
Giraniya atomê
203,989726 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
dema îcadkirinê yan keşfê2011
parity

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

205Ir

Hejmara baristeyî205
neutron number128
Giraniya atomê
204,993988 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2012
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Iridium foil

dîrok

kaşîf an îcadkerS.Tenant, A.F.Fourcory, L.N.Vauquelin, H.V.Collet-Descoltils
location of discoveryEngland/France
dema îcadkirinê yan keşfê1804
BêjenasîLatin: iris (rainbow).
pronunciationi-RID-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
0,001 mg/kg
natural abundance (Okyanûs)
natural abundance (human body)
natural abundance (meteoroid)
0,000054 %
natural abundance (Roj)
0,0000002 %
Abundance in Universe
0,0000002 %

Nuclear Screening Constants

1s1.4881
2p4.4624
2s20.1102
3d13.514
3p21.9311
3s22.7942
4d37.2628
4f38.6552
4p35.086
4s34.152
5d58.304
5p53.339
5s51.1545
6s66.4334