Iridium

Iridium (Ir)

grundstof med atomnummer 77
Atomnummer77
Atommasse192.217
mass number193
Gruppe9
Periode6
Blokd
proton77 p+
neutron116 n0
elektron77 e-
Animated Bohrs atommodel of Ir (Iridium)

Fysisk Egenskab

Atomradius
molar volume
Kovalent Radius
Metallic Radius
Ionisk radius
Crystal Radius
Van der Waals-radius
massefylde
Atomic Radii Of The Elements: Iridium0102030405060708090100110120130140150160170180190200210220pmAtomradiusKovalent RadiusMetallic RadiusVan der Waals-radius

Kemisk Egenskab

energi
proton affinity
electron affinity
ioniseringsenergi
ioniseringsenergi of Ir (Iridium)
Fordampningsvarme
smeltevarme
standard enthalpy of formation
elektron
Elektronskal2, 8, 18, 32, 15, 2
Bohrs atommodel: Ir (Iridium)
Valenselektron2
Elektronprikmodellen: Ir (Iridium)
electron configuration[Xe] 4f14 5d7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d7 6s2
Enhanced Bohrs atommodel of Ir (Iridium)
Orbital Diagram of Ir (Iridium)
Oxidationstrin-3, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Elektronegativitet
2.2
Electrophilicity Index
fundamental state of matter
stoffaseFast stof
gaseous state of matter
Kogepunkt
Smeltepunkt
critical pressure
critical temperature
trippelpunkt
appearance
farve
Silver
appearancesilvery white
Brydningsindeks
materialeegenskab
Varmeledningsevne
Termisk ekspansion
molar heat capacity
Varmefylde
Adiabateksponenten
electrical properties
typeConductor
specifik ledningsevne
Elektrisk resistivitet
superledning
Magnetisme
typeparamagnetic
magnetic susceptibility (Mass)
0,00000000167 m³/Kg
magnetic susceptibility (Molar)
0,000000000321 m³/mol
magnetic susceptibility (Volume)
0,0000377
magnetic ordering
Curietemperaturen
Néel temperature
struktur
KrystalstrukturFladecentreret Kubisk (FCC)
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hårdhed
Kompressibilitetsmodul
Forskydningsmodul
E-modul
Poissons forhold
0,26
speed of sound
klassificering
KategoriOvergangsmetaller, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number62
Mendeleev Number65
Pettifor Number65
Geochemical Classnoble metal
Goldschmidt classificationsiderophile

øvrige

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
425
Neutron Mass Absorption
0,081
quantum number4F9/2
rumgruppe225 (Fm_3m)

Isotopes of Iridium

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

163Ir

mass number163
neutron number86
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin1/2
nuclear quadrupole moment
0
opdagelsesdato
Paritet+

decay modeIntensitet
p (proton emission)

164Ir

mass number164
neutron number87
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin2
nuclear quadrupole moment
opdagelsesdato
Paritet-

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

165Ir

mass number165
neutron number88
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin1/2
nuclear quadrupole moment
0
opdagelsesdato
Paritet+

decay modeIntensitet
p (proton emission)
α (α emission)

166Ir

mass number166
neutron number89
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
10,5 ± 2,2 ms
spin2
nuclear quadrupole moment
opdagelsesdato1981
Paritet

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

167Ir

mass number167
neutron number90
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
29,3 ± 0,6 ms
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1981
Paritet+

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

168Ir

mass number168
neutron number91
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
230 ± 50 ms
spin2
nuclear quadrupole moment
opdagelsesdato1978
Paritet

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

169Ir

mass number169
neutron number92
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
353 ± 4 ms
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1978
Paritet+

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

170Ir

mass number170
neutron number93
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
910 ± 150 ms
spin3
nuclear quadrupole moment
opdagelsesdato1977
Paritet-

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

171Ir

mass number171
neutron number94
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
3,1 ± 0,3 s
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1967
Paritet+

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

172Ir

mass number172
neutron number95
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
4,4 ± 0,3 s
spin3
nuclear quadrupole moment
opdagelsesdato1967
Paritet-

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

173Ir

mass number173
neutron number96
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
9 ± 0,8 s
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1967
Paritet+

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

174Ir

mass number174
neutron number97
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
7,9 ± 0,6 s
spin2
nuclear quadrupole moment
opdagelsesdato1967
Paritet+

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

175Ir

mass number175
neutron number98
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
9 ± 2 s
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1967
Paritet+

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

176Ir

mass number176
neutron number99
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
8,7 ± 0,5 s
spin3
nuclear quadrupole moment
opdagelsesdato1967
Paritet+

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

177Ir

mass number177
neutron number100
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
29,8 ± 1,7 s
spin5/2
nuclear quadrupole moment
opdagelsesdato1967
Paritet-

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

178Ir

mass number178
neutron number101
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
12 ± 2 s
spin3
nuclear quadrupole moment
opdagelsesdato1972
Paritet+

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

179Ir

mass number179
neutron number102
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
79 ± 1 s
spin5/2
nuclear quadrupole moment
opdagelsesdato1992
Paritet

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

180Ir

mass number180
neutron number103
Relative Atomic Mass
g-factor
0,5 ± 0,04
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
1,5 ± 0,1 m
spin5
nuclear quadrupole moment
opdagelsesdato1972
Paritet+

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

181Ir

mass number181
neutron number104
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
4,9 ± 0,15 m
spin5/2
nuclear quadrupole moment
opdagelsesdato1972
Paritet-

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

182Ir

mass number182
neutron number105
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
15 ± 1 m
spin3
nuclear quadrupole moment
opdagelsesdato1961
Paritet+

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

183Ir

mass number183
neutron number106
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
58 ± 5 m
spin5/2
nuclear quadrupole moment
opdagelsesdato1961
Paritet-

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

184Ir

mass number184
neutron number107
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
3,09 ± 0,03 h
spin5
nuclear quadrupole moment
2,41 ± 0,03
opdagelsesdato1960
Paritet-

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

185Ir

mass number185
neutron number108
Relative Atomic Mass
g-factor
1,0384 ± 0,0052
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
14,4 ± 0,1 h
spin5/2
nuclear quadrupole moment
opdagelsesdato1958
Paritet-

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

186Ir

mass number186
neutron number109
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
16,64 ± 0,03 h
spin5
nuclear quadrupole moment
-2,55 ± 0,03
opdagelsesdato1958
Paritet+

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

187Ir

mass number187
neutron number110
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
10,5 ± 0,3 h
spin3/2
nuclear quadrupole moment
0,941 ± 0,011
opdagelsesdato1958
Paritet+

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

188Ir

mass number188
neutron number111
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
41,5 ± 0,5 h
spin1
nuclear quadrupole moment
0,484 ± 0,006
opdagelsesdato1950
Paritet-

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

189Ir

mass number189
neutron number112
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
13,2 ± 0,1 d
spin3/2
nuclear quadrupole moment
opdagelsesdato1955
Paritet+

decay modeIntensitet
ϵ (electron capture)100%

190Ir

mass number190
neutron number113
Relative Atomic Mass
g-factor
0,01 ± 0,0025
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
11,78 ± 0,1 d
spin4
nuclear quadrupole moment
2,87 ± 0,16
opdagelsesdato1947
Paritet-

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

191Ir

mass number191
neutron number114
Relative Atomic Mass
g-factor
0,10013333333333 ± 0,0004
natural abundance
37,3 ± 0,2
radioaktivitetstable isotope
halveringstidNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,816 ± 0,009
opdagelsesdato1935
Paritet+

192Ir

mass number192
neutron number115
Relative Atomic Mass
g-factor
0,47925 ± 0,0025
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
73,82 ± 0,014 d
spin4
nuclear quadrupole moment
2,15 ± 0,06
opdagelsesdato1937
Paritet+

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

193Ir

mass number193
neutron number116
Relative Atomic Mass
g-factor
0,10866666666667 ± 0,0004
natural abundance
62,7 ± 0,2
radioaktivitetstable isotope
halveringstidNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,751 ± 0,009
opdagelsesdato1935
Paritet+

194Ir

mass number194
neutron number117
Relative Atomic Mass
g-factor
0,39 ± 0,01
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
19,35 ± 0,07 h
spin1
nuclear quadrupole moment
0,339 ± 0,012
opdagelsesdato1937
Paritet-

decay modeIntensitet
β (β decay)100%

195Ir

mass number195
neutron number118
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
2,29 ± 0,17 h
spin3/2
nuclear quadrupole moment
opdagelsesdato1952
Paritet+

decay modeIntensitet
β (β decay)100%

196Ir

mass number196
neutron number119
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
52 ± 1,1 s
spin1
nuclear quadrupole moment
opdagelsesdato1966
Paritet

decay modeIntensitet
β (β decay)100%

197Ir

mass number197
neutron number120
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
5,8 ± 0,5 m
spin3/2
nuclear quadrupole moment
opdagelsesdato1952
Paritet+

decay modeIntensitet
β (β decay)100%

198Ir

mass number198
neutron number121
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
8,7 ± 0,4 s
spin1
nuclear quadrupole moment
opdagelsesdato1973
Paritet-

decay modeIntensitet
β (β decay)100%

199Ir

mass number199
neutron number122
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
7 ± 5 s
spin3/2
nuclear quadrupole moment
opdagelsesdato1993
Paritet+

decay modeIntensitet
β (β decay)100%

200Ir

mass number200
neutron number123
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
43 ± 6 s
spin2
nuclear quadrupole moment
opdagelsesdato2008
Paritet-

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

201Ir

mass number201
neutron number124
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
21 ± 5 s
spin3/2
nuclear quadrupole moment
opdagelsesdato2008
Paritet+

decay modeIntensitet
β (β decay)100%

202Ir

mass number202
neutron number125
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
11 ± 3 s
spin2
nuclear quadrupole moment
opdagelsesdato2008
Paritet-

decay modeIntensitet
β (β decay)100%

203Ir

mass number203
neutron number126
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin3/2
nuclear quadrupole moment
opdagelsesdato2009
Paritet+

decay modeIntensitet
β (β decay)

204Ir

mass number204
neutron number127
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin
nuclear quadrupole moment
opdagelsesdato2011
Paritet

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

205Ir

mass number205
neutron number128
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin3/2
nuclear quadrupole moment
opdagelsesdato2012
Paritet+

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

historie

opdager eller opfinderS.Tenant, A.F.Fourcory, L.N.Vauquelin, H.V.Collet-Descoltils
fundstedEngland/France
opdagelsesdato1804
etymologiLatin: iris (rainbow).
udtalei-RID-i-em (engelsk)

source

Forekomst
Abundance in Earth's crust
natural abundance (verdenshave)
natural abundance (menneskelige krop)
natural abundance (Meteoroid)
0,000054 %
natural abundance (Solen)
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