Iridij[um]

Iridij[um] (Ir)

hemijski element sa simbolom Ir i atomskim brojem 77
Atomic Number77
Atomic Weight192.217
Maseni broj193
Group9
Period6
Blockd
Proton77 p+
Neutron116 n0
Elektron77 e-
Animated Bohrov model atoma of Ir (Iridij[um])

Physical Property

Atomski Radijus
135 pm
Molarni volumen
covalent radius
122 pm
Metallic Radius
127 pm
Ionski radijus
68 pm
Crystal Radius
82 pm
Van der Waalsov radijus
213 pm
gustoća
22,5622 g/cm³
Atomic Radii Of The Elements: Iridij[um]0102030405060708090100110120130140150160170180190200210220pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
8,96702 eV/particle
ionization energy of Ir (Iridij[um])
Toplota isparavanja
604 kJ/mol
toplota topljenja
27,61 kJ/mol
standard enthalpy of formation
669 kJ/mol
Elektron
electron shell2, 8, 18, 32, 15, 2
Bohrov model atoma: Ir (Iridij[um])
Valentni elektron2
Lewis structure: Ir (Iridij[um])
electron configuration[Xe] 4f14 5d7 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d7 6s2
Enhanced Bohrov model atoma of Ir (Iridij[um])
Orbital Diagram of Ir (Iridij[um])
oksidacijsko stanje-3, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Elektronegativnost
2.2
Electrophilicity Index
1,872465121129725 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
4.701,15 K
Melting Point
2.719,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearancesilvery white
Indeks prelamanja
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
Specifična električna provodljivost
21 MS/m
electrical resistivity
0,00000004699999999998 m Ω
Superprovodljivost
0,11 K
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,00000000167 m³/Kg
magnetic susceptibility (Molar)
0,000000000321 m³/mol
magnetic susceptibility (Volume)
0,0000377
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureFace Centered Cubic (FCC)
lattice constant
3,84 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
6,5 MPa
bulk modulus
320 GPa
shear modulus
210 GPa
Young's modulus
528 GPa
Poisson's ratio
0,26
Brzina zvuka
4.825 m/s
klasifikacija
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
Kvantni brojevi4F9/2
space group225 (Fm_3m)

Isotopes of Iridium

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

163Ir

Maseni broj163
broj neutrona86
relative atomic mass
162,994299 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića
parity+

decay modeintensity
p (proton emission)

164Ir

Maseni broj164
broj neutrona87
relative atomic mass
163,991966 ± 0,000339 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin2
nuclear quadrupole moment
datum otkrića
parity-

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

165Ir

Maseni broj165
broj neutrona88
relative atomic mass
164,987552 ± 0,00017 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića
parity+

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

166Ir

Maseni broj166
broj neutrona89
relative atomic mass
165,985716 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,5 ± 2,2 ms
spin2
nuclear quadrupole moment
datum otkrića1981
parity

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

167Ir

Maseni broj167
broj neutrona90
relative atomic mass
166,981671973 ± 0,000019694 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29,3 ± 0,6 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1981
parity+

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

168Ir

Maseni broj168
broj neutrona91
relative atomic mass
167,979960978 ± 0,000059277 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
230 ± 50 ms
spin2
nuclear quadrupole moment
datum otkrića1978
parity

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

169Ir

Maseni broj169
broj neutrona92
relative atomic mass
168,976281743 ± 0,00002502 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
353 ± 4 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1978
parity+

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

170Ir

Maseni broj170
broj neutrona93
relative atomic mass
169,975113 ± 0,000109 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
910 ± 150 ms
spin3
nuclear quadrupole moment
datum otkrića1977
parity-

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

171Ir

Maseni broj171
broj neutrona94
relative atomic mass
170,97164552 ± 0,000041295 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,1 ± 0,3 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1967
parity+

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

172Ir

Maseni broj172
broj neutrona95
relative atomic mass
171,970607035 ± 0,000034785 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,4 ± 0,3 s
spin3
nuclear quadrupole moment
datum otkrića1967
parity-

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

173Ir

Maseni broj173
broj neutrona96
relative atomic mass
172,967505477 ± 0,000011316 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9 ± 0,8 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1967
parity+

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

174Ir

Maseni broj174
broj neutrona97
relative atomic mass
173,966949939 ± 0,000012046 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,9 ± 0,6 s
spin2
nuclear quadrupole moment
datum otkrića1967
parity+

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

175Ir

Maseni broj175
broj neutrona98
relative atomic mass
174,964149519 ± 0,000013295 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9 ± 2 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1967
parity+

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

176Ir

Maseni broj176
broj neutrona99
relative atomic mass
175,963626261 ± 0,000008679 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,7 ± 0,5 s
spin3
nuclear quadrupole moment
datum otkrića1967
parity+

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

177Ir

Maseni broj177
broj neutrona100
relative atomic mass
176,9613015 ± 0,000021213 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29,8 ± 1,7 s
spin5/2
nuclear quadrupole moment
datum otkrića1967
parity-

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

178Ir

Maseni broj178
broj neutrona101
relative atomic mass
177,961079395 ± 0,000020204 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12 ± 2 s
spin3
nuclear quadrupole moment
datum otkrića1972
parity+

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

179Ir

Maseni broj179
broj neutrona102
relative atomic mass
178,959117594 ± 0,000010489 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
79 ± 1 s
spin5/2
nuclear quadrupole moment
datum otkrića1992
parity

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

180Ir

Maseni broj180
broj neutrona103
relative atomic mass
179,959229446 ± 0,000023302 Da
g-factor
0,5 ± 0,04
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,5 ± 0,1 m
spin5
nuclear quadrupole moment
datum otkrića1972
parity+

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

181Ir

Maseni broj181
broj neutrona104
relative atomic mass
180,957634691 ± 0,000005631 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,9 ± 0,15 m
spin5/2
nuclear quadrupole moment
datum otkrića1972
parity-

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

182Ir

Maseni broj182
broj neutrona105
relative atomic mass
181,958076296 ± 0,000022509 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
15 ± 1 m
spin3
nuclear quadrupole moment
datum otkrića1961
parity+

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

183Ir

Maseni broj183
broj neutrona106
relative atomic mass
182,956841231 ± 0,000026486 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
58 ± 5 m
spin5/2
nuclear quadrupole moment
datum otkrića1961
parity-

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

184Ir

Maseni broj184
broj neutrona107
relative atomic mass
183,957476 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,09 ± 0,03 h
spin5
nuclear quadrupole moment
2,41 ± 0,03
datum otkrića1960
parity-

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

185Ir

Maseni broj185
broj neutrona108
relative atomic mass
184,956698 ± 0,00003 Da
g-factor
1,0384 ± 0,0052
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,4 ± 0,1 h
spin5/2
nuclear quadrupole moment
datum otkrića1958
parity-

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

186Ir

Maseni broj186
broj neutrona109
relative atomic mass
185,957946754 ± 0,00001774 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
16,64 ± 0,03 h
spin5
nuclear quadrupole moment
-2,55 ± 0,03
datum otkrića1958
parity+

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

187Ir

Maseni broj187
broj neutrona110
relative atomic mass
186,957542 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,5 ± 0,3 h
spin3/2
nuclear quadrupole moment
0,941 ± 0,011
datum otkrića1958
parity+

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

188Ir

Maseni broj188
broj neutrona111
relative atomic mass
187,958834999 ± 0,000010116 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
41,5 ± 0,5 h
spin1
nuclear quadrupole moment
0,484 ± 0,006
datum otkrića1950
parity-

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

189Ir

Maseni broj189
broj neutrona112
relative atomic mass
188,958722602 ± 0,0000135 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,2 ± 0,1 d
spin3/2
nuclear quadrupole moment
datum otkrića1955
parity+

decay modeintensity
ϵ (electron capture)100%

190Ir

Maseni broj190
broj neutrona113
relative atomic mass
189,960543374 ± 0,00000147 Da
g-factor
0,01 ± 0,0025
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,78 ± 0,1 d
spin4
nuclear quadrupole moment
2,87 ± 0,16
datum otkrića1947
parity-

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

191Ir

Maseni broj191
broj neutrona114
relative atomic mass
190,960591455 ± 0,000001406 Da
g-factor
0,10013333333333 ± 0,0004
natural abundance
37,3 ± 0,2
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,816 ± 0,009
datum otkrića1935
parity+

192Ir

Maseni broj192
broj neutrona115
relative atomic mass
191,962602414 ± 0,00000141 Da
g-factor
0,47925 ± 0,0025
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
73,82 ± 0,014 d
spin4
nuclear quadrupole moment
2,15 ± 0,06
datum otkrića1937
parity+

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

193Ir

Maseni broj193
broj neutrona116
relative atomic mass
192,962923753 ± 0,000001425 Da
g-factor
0,10866666666667 ± 0,0004
natural abundance
62,7 ± 0,2
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,751 ± 0,009
datum otkrića1935
parity+

194Ir

Maseni broj194
broj neutrona117
relative atomic mass
193,965075703 ± 0,000001429 Da
g-factor
0,39 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,35 ± 0,07 h
spin1
nuclear quadrupole moment
0,339 ± 0,012
datum otkrića1937
parity-

decay modeintensity
β (β decay)100%

195Ir

Maseni broj195
broj neutrona118
relative atomic mass
194,965976898 ± 0,000001431 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,29 ± 0,17 h
spin3/2
nuclear quadrupole moment
datum otkrića1952
parity+

decay modeintensity
β (β decay)100%

196Ir

Maseni broj196
broj neutrona119
relative atomic mass
195,968399669 ± 0,000041239 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
52 ± 1,1 s
spin1
nuclear quadrupole moment
datum otkrića1966
parity

decay modeintensity
β (β decay)100%

197Ir

Maseni broj197
broj neutrona120
relative atomic mass
196,969657217 ± 0,000021588 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,8 ± 0,5 m
spin3/2
nuclear quadrupole moment
datum otkrića1952
parity+

decay modeintensity
β (β decay)100%

198Ir

Maseni broj198
broj neutrona121
relative atomic mass
197,972399 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,7 ± 0,4 s
spin1
nuclear quadrupole moment
datum otkrića1973
parity-

decay modeintensity
β (β decay)100%

199Ir

Maseni broj199
broj neutrona122
relative atomic mass
198,973807097 ± 0,000044073 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7 ± 5 s
spin3/2
nuclear quadrupole moment
datum otkrića1993
parity+

decay modeintensity
β (β decay)100%

200Ir

Maseni broj200
broj neutrona123
relative atomic mass
199,976844 ± 0,00021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
43 ± 6 s
spin2
nuclear quadrupole moment
datum otkrića2008
parity-

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

201Ir

Maseni broj201
broj neutrona124
relative atomic mass
200,978701 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21 ± 5 s
spin3/2
nuclear quadrupole moment
datum otkrića2008
parity+

decay modeintensity
β (β decay)100%

202Ir

Maseni broj202
broj neutrona125
relative atomic mass
201,982136 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11 ± 3 s
spin2
nuclear quadrupole moment
datum otkrića2008
parity-

decay modeintensity
β (β decay)100%

203Ir

Maseni broj203
broj neutrona126
relative atomic mass
202,984573 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića2009
parity+

decay modeintensity
β (β decay)

204Ir

Maseni broj204
broj neutrona127
relative atomic mass
203,989726 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića2011
parity

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

205Ir

Maseni broj205
broj neutrona128
relative atomic mass
204,993988 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića2012
parity+

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

historija

otkrivač ili izumiteljS.Tenant, A.F.Fourcory, L.N.Vauquelin, H.V.Collet-Descoltils
mjesto otkrićaEngland/France
datum otkrića1804
EtimologijaLatin: iris (rainbow).
pronunciationi-RID-i-em (engleski)

izvor

Abundance
Abundance in Earth's crust
0,001 mg/kg
natural abundance (okean)
natural abundance (ljudsko tijelo)
natural abundance (Meteoroidi)
0,000054 %
natural abundance (Sunce)
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