Изотопи на иридиумот

Постојат два природни изотопи на иридиумот (77Ir) и 37 радиоизотопи, од кои најстабилен радиоизотоп е <sup>192</sup>Ir со време на полураспад од 73,83 дена и многу јадрени изомери, од кои најстабилниот е 192 m2 Ir со време на полураспад од 241 година. Сите други изомери имаат време на полураспад под една година, најмногу под еден ден. Сите изотопи на иридиум се или радиоактивни или набљудувачки стабилни, што значи дека се предвидува дека се радиоактивни, но не е забележано вистинско распаѓање.

## Список на изотопи

|-id=Иридиум-164
| 164Ir
| style="text-align:right" | 77
| style="text-align:right" | 87
| 163,99220(44)#
| 163Os
| 2−#
|
|
|-id=Иридиум-164m
| rowspan=2 style="text-indent:1em" | 164mIr
| rowspan=2  colspan="3" style="text-indent:2em" | 270(110)#&nbsp;keV
| rowspan=2| 70(10)&nbsp;μs
| p (96%)
| 163Os
| rowspan=2| 9+#
| rowspan=2|
| rowspan=2|
|-
| α (4%)
| 160mRe
|-id=Иридиум-165
| 165Ir
| style="text-align:right" | 77
| style="text-align:right" | 88
| 164,98752(23)#
| 
| p
| 164Os
| (1/2+)
| 
| 
|-id=Иридиум-165m
| rowspan=2 style="text-indent:1em" | 165mIr
| rowspan=2 colspan="3" style="text-indent:2em" | ~255&nbsp;keV
| rowspan=2|340(40)&nbsp;μs
| p (88%)
| 164Os
| rowspan=2|(11/2−)
| rowspan=2|
| rowspan=2|
|-
| α (12%)
| 161mRe
|-id=Иридиум-166
| rowspan=2|166Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 89
| rowspan=2|165,98582(22)#
| rowspan=2|10,5(22)&nbsp;ms
| α (93%)
| 162Re
| rowspan=2|(2−)
| rowspan=2|
| rowspan=2|
|-
| p (7%)
| 165Os
|-id=Иридиум-166m
| rowspan=2 style="text-indent:1em" | 166mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 172(6)&nbsp;keV
| rowspan=2|15,1(9)&nbsp;ms
| α (98,2%)
| 162Re
| rowspan=2|(9+)
| rowspan=2|
| rowspan=2|
|-
| p (1,8%)
| 165Os
|-id=Иридиум-167
| rowspan=3|167Ir
| rowspan=3 style="text-align:right" | 77
| rowspan=3 style="text-align:right" | 90
| rowspan=3|166,981665(20)
| rowspan=3|35,2(20)&nbsp;ms
| α (48%)
| 163Re
| rowspan=3|1/2+
| rowspan=3|
| rowspan=3|
|-
| p (32%)
| 166Os
|-
| β<sup>+</sup> (20%)
| 167Os
|-id=Иридиум-167m
| rowspan=3 style="text-indent:1em" | 167mIr
| rowspan=3 colspan="3" style="text-indent:2em" | 175,3(22)&nbsp;keV
| rowspan=3|30,0(6)&nbsp;ms
| α (80%)
| 163Re
| rowspan=3|11/2−
| rowspan=3|
| rowspan=3|
|-
| β+ (20%)
| 167Os
|-
| p (,4%)
| 166Os
|-id=Иридиум-168
| rowspan=2|168Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 91
| rowspan=2|167,97988(16)#
| rowspan=2|161(21)&nbsp;ms
| α
| 164Re
| rowspan=2|(2-)
| rowspan=2|
| rowspan=2|
|-
| β+ (rare)
| 168Os
|-id=Иридиум-168m
| style="text-indent:1em" | 168mIr
| colspan="3" style="text-indent:2em" | 50(100)#&nbsp;keV
| 125(40)&nbsp;ms
| α
| 164Re
| (9+)
|
|
|-id=Иридиум-169
| rowspan=2|169Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 92
| rowspan=2|168,976295(28)
| rowspan=2|780(360)&nbsp;ms[]
| α
| 165Re
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| β+ (rare)
| 169Os
|-id=Иридиум-169m
| rowspan=2 style="text-indent:1em" | 169mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 154(24)&nbsp;keV
| rowspan=2|308(22)&nbsp;ms
| α (72%)
| 165Re
| rowspan=2|(11/2−)
| rowspan=2|
| rowspan=2|
|-
| β+ (28%)
| 169Os
|-id=Иридиум-170
| rowspan=2|170Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 93
| rowspan=2|169,97497(11)#
| rowspan=2|910(150)&nbsp;ms[]
| β+ (64%)
| 170Os
| rowspan=2|low#
| rowspan=2|
| rowspan=2|
|-
| α (36%)
| 166Re
|-id=Иридиум-170m
| rowspan=3 style="text-indent:1em" | 170mIr
| rowspan=3 colspan="3" style="text-indent:2em" | 160(50)#&nbsp;keV
| rowspan=3|440(60)&nbsp;ms
| α (36%)
| 166Re
| rowspan=3|(8+)
| rowspan=3|
| rowspan=3|
|-
| β+
| 170Os
|-
| IT
| 170Ir
|-id=Иридиум-171
| rowspan=2|171Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 94
| rowspan=2|170,97163(4)
| rowspan=2|3,6(10)&nbsp;s[]
| α (58%)
| 167Re
| rowspan=2|1/2+
| rowspan=2|
| rowspan=2|
|-
| β+ (42%)
| 171Os
|-id=Иридиум-171m
| style="text-indent:1em" | 171mIr
| colspan="3" style="text-indent:2em" | 180(30)#&nbsp;keV
| 1,40(10)&nbsp;s
|
|
| (11/2−)
|
|
|-id=Иридиум-172
| rowspan=2|172Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 95
| rowspan=2|171,970610(30)
| rowspan=2|4,4(3)&nbsp;s
| β+ (98%)
| 172Os
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (2%)
| 168Re
|-id=Иридиум-172m
| rowspan=2 style="text-indent:1em" | 172mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 280(100)#&nbsp;keV
| rowspan=2|2,0(1)&nbsp;s
| β+ (77%)
| 172Os
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| α (23%)
| 168Re
|-id=Иридиум-173
| rowspan=2|173Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 96
| rowspan=2|172,967502(15)
| rowspan=2|9,0(8)&nbsp;s
| β+ (93%)
| 173Os
| rowspan=2|(3/2+,5/2+)
| rowspan=2|
| rowspan=2|
|-
| α (7%)
| 169Re
|-id=Иридиум-173m
| rowspan=2 style="text-indent:1em" | 173mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 253(27)&nbsp;keV
| rowspan=2|2,20(5)&nbsp;s
| β+ (88%)
| 173Os
| rowspan=2|(11/2−)
| rowspan=2|
| rowspan=2|
|-
| α (12%)
| 169Re
|-id=Иридиум-174
| rowspan=2|174Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 97
| rowspan=2|173,966861(30)
| rowspan=2|7,9(6)&nbsp;s
| β+ (99,5%)
| 174Os
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (,5%)
| 170Re
|-id=Иридиум-174m
| rowspan=2 style="text-indent:1em" | 174mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 193(11)&nbsp;keV
| rowspan=2|4,9(3)&nbsp;s
| β+ (99,53%)
| 174Os
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| α (,47%)
| 170Re
|-id=Иридиум-175
| rowspan=2|175Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 98
| rowspan=2|174,964113(21)
| rowspan=2|9(2)&nbsp;s
| β+ (99,15%)
| 175Os
| rowspan=2|(5/2−)
| rowspan=2|
| rowspan=2|
|-
| α (,85%)
| 171Re
|-id=Иридиум-176
| rowspan=2|176Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 99
| rowspan=2|175,963649(22)
| rowspan=2|8,3(6)&nbsp;s
| β+ (97,9%)
| 176Os
| rowspan=2|
| rowspan=2|
| rowspan=2|
|-
| α (2,1%)
| 172Re
|-id=Иридиум-177
| rowspan=2|177Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 100
| rowspan=2|176,961302(21)
| rowspan=2|30(2)&nbsp;s
| β+ (99,94%)
| 177Os
| rowspan=2|5/2−
| rowspan=2|
| rowspan=2|
|-
| α (,06%)
| 173Re
|-id=Иридиум-178
| 178Ir
| style="text-align:right" | 77
| style="text-align:right" | 101
| 177,961082(21)
| 12(2)&nbsp;s
| β+
| 178Os
|
|
|
|-id=Иридиум-179
| 179Ir
| style="text-align:right" | 77
| style="text-align:right" | 102
| 178,959122(12)
| 79(1)&nbsp;s
| β+
| 179Os
| (5/2)−
|
|
|-id=Иридиум-180
| 180Ir
| style="text-align:right" | 77
| style="text-align:right" | 103
| 179,959229(23)
| 1,5(1)&nbsp;min
| β+
| 180Os
| (4,5)(+#)
|
|
|-id=Иридиум-181
| 181Ir
| style="text-align:right" | 77
| style="text-align:right" | 104
| 180,957625(28)
| 4,90(15)&nbsp;min
| β+
| 181Os
| (5/2)−
|
|
|-id=Иридиум-182
| 182Ir
| style="text-align:right" | 77
| style="text-align:right" | 105
| 181,958076(23)
| 15(1)&nbsp;min
| β+
| 182Os
| (3+)
|
|
|-id=Иридиум-183
| rowspan=2|183Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 106
| rowspan=2|182,956846(27)
| rowspan=2|57(4)&nbsp;min
| β+ ( 99,95%)
| 183Os
| rowspan=2|5/2−
| rowspan=2|
| rowspan=2|
|-
| α (,05%)
| 179Re
|-id=Иридиум-184
| 184Ir
| style="text-align:right" | 77
| style="text-align:right" | 107
| 183,95748(3)
| 3,09(3)&nbsp;h
| β+
| ***<sup>184</sup>Os***
| 5−
|
|
|-id=Иридиум-184m1
| style="text-indent:1em" | 184m1Ir
| colspan="3" style="text-indent:2em" | 225,65(11)&nbsp;keV
| 470(30)&nbsp;μs
|
|
| 3+
|
|
|-id=Иридиум-184m2
| style="text-indent:1em" | 184m2Ir
| colspan="3" style="text-indent:2em" | 328,40(24)&nbsp;keV
| 350(90)&nbsp;ns
|
|
| (7)+
|
|
|-id=Иридиум-185
| 185Ir
| style="text-align:right" | 77
| style="text-align:right" | 108
| 184,95670(3)
| 14,4(1)&nbsp;h
| β+
| 185Os
| 5/2−
|
|
|-id=Иридиум-186
| 186Ir
| style="text-align:right" | 77
| style="text-align:right" | 109
| 185,957946(18)
| 16,64(3)&nbsp;h
| β+
| ***<sup>186</sup>Os***
| 5+
|
|
|-id=Иридиум-186m
| rowspan=2 style="text-indent:1em" | 186mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 0,8(4)&nbsp;keV
| rowspan=2|1,92(5)&nbsp;h
| β+
| ***<sup>186</sup>Os***
| rowspan=2|2−
| rowspan=2|
| rowspan=2|
|-
| IT (ретко)
| 186Ir
|-id=Иридиум-187
| 187Ir
| style="text-align:right" | 77
| style="text-align:right" | 110
| 186,957363(7)
| 10,5(3)&nbsp;h
| β+
| **<sup>187</sup>Os**
| 3/2+
|
|
|-id=Иридиум-187m1
| style="text-indent:1em" | 187m1Ir
| colspan="3" style="text-indent:2em" | 186,15(4)&nbsp;keV
| 30,3(6)&nbsp;ms
| IT
| 187Ir
| 9/2−
|
|
|-id=Иридиум-187m2
| style="text-indent:1em" | 187m2Ir
| colspan="3" style="text-indent:2em" | 433,81(9)&nbsp;keV
| 152(12)&nbsp;ns
|
|
| 11/2−
|
|
|-id=Иридиум-188
| 188Ir
| style="text-align:right" | 77
| style="text-align:right" | 111
| 187,958853(8)
| 41,5(5)&nbsp;h
| β+
| **<sup>188</sup>Os**
| 1−
|
|
|-id=Иридиум-188m
| rowspan=2 style="text-indent:1em" | 188mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 970(30)&nbsp;keV
| rowspan=2|4,2(2)&nbsp;ms
| IT
| 188Ir
| rowspan=2|7+#
| rowspan=2|
| rowspan=2|
|-
| β+ (rare)
| **<sup>188</sup>Os**
|-id=Иридиум-189
| 189Ir
| style="text-align:right" | 77
| style="text-align:right" | 112
| 188,958719(14)
| 13,2(1)&nbsp;d
| EC
| **<sup>189</sup>Os**
| 3/2+
|
|
|-id=Иридиум-189m1
| style="text-indent:1em" | 189m1Ir
| colspan="3" style="text-indent:2em" | 372,18(4)&nbsp;keV
| 13,3(3)&nbsp;ms
| IT
| 189Ir
| 11/2−
|
|
|-id=Иридиум-189m2
| style="text-indent:1em" | 189m2Ir
| colspan="3" style="text-indent:2em" | 2333,3(4)&nbsp;keV
| 3,7(2)&nbsp;ms
|
|
| (25/2)+
|
|
|-id=Иридиум-190
| rowspan=2|190Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 113
| rowspan=2|189,9605460(18)
| rowspan=2|11,7511(20)&nbsp;d
| EC
| rowspan=2|**<sup>190</sup>Os**
| rowspan=2|4−
| rowspan=2 |
|-
| β+ (190m1Ir
| colspan="3" style="text-indent:2em" | 26,1(1)&nbsp;keV
| 1,120(3)&nbsp;h
| IT
| 190Ir
| (1)−
|
|
|-id=Иридиум-190m2
| style="text-indent:1em" | 190m2Ir
| colspan="3" style="text-indent:2em" | 36,154(25)&nbsp;keV
| >2&nbsp;μs
|
|
| (4)+
|
|
|-id=Иридиум-190m3
| rowspan=2 style="text-indent:1em" | 190m3Ir
| rowspan=2 colspan=3 style="text-indent:2em" | 376,4(1)&nbsp;keV
| rowspan=2|3,087(12)&nbsp;h
| EC (91,4%)
| **<sup>190</sup>Os**
| rowspan=2|(11)−
| rowspan=2|
| rowspan=2|
|-
| IT (8,6%)
| 190Ir
|-id=Иридиум-191
| 191Ir
| style="text-align:right" | 77
| style="text-align:right" | 114
| 190,9605940(18)
| colspan=3 align=center|**[[Опсервациски стабилен]]**
| 3/2+
| 0,373(2)
|
|-id=Иридиум-191m1
| style="text-indent:1em" | 191m1Ir
| colspan="3" style="text-indent:2em" | 171,24(5)&nbsp;keV
| 4,94(3)&nbsp;s
| IT
| **<sup>191</sup>Ir**
| 11/2−
|
|
|-id=Иридиум-191m2
| style="text-indent:1em" | 191m2Ir
| colspan="3" style="text-indent:2em" | 2120(40)&nbsp;keV
| 5,5(7)&nbsp;s
|
|
|
|
|
|-
| rowspan=2|<sup>192</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 115
| rowspan=2|191,9626050(18)
| rowspan=2|73,827(13)&nbsp;d
| β− (95,24%)
| **<sup>192</sup>Pt**
| rowspan=2|4+
| rowspan=2|
| rowspan=2|
|-
| EC (4,76%)
| **<sup>192</sup>Os**
|-id=Иридиум-192m1
| rowspan=2 style="text-indent:1em" | 192m1Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 56,720(5)&nbsp;keV
| rowspan=2|1,45(5)&nbsp;min
| IT (98,25%)
| 192Ir
| rowspan=2|1−
| rowspan=2|
| rowspan=2|
|-
| β− (1,75%)
| **<sup>192</sup>Pt**
|-id=Иридиум-192m2
| style="text-indent:1em" | 192m2Ir
| colspan="3" style="text-indent:2em" | 168,14(12)&nbsp;keV
| 241(9)&nbsp;y
| IT
| 192Ir
| (11−)
|
|
|-id=Иридиум-193
| 193Ir
| style="text-align:right" | 77
| style="text-align:right" | 116
| 192,9629264(18)
| colspan=3 align=center|**Опсервациски стабилен**
| 3/2+
| 0,627(2)
|
|-id=Иридиум-193m
| style="text-indent:1em" | 193mIr
| colspan="3" style="text-indent:2em" | 80,240(6)&nbsp;keV
| 10,53(4)&nbsp;d
| IT
| **<sup>193</sup>Ir**
| 11/2−
|
|
|-id=Иридиум-194
| 194Ir
| style="text-align:right" | 77
| style="text-align:right" | 117
| 193,9650784(18)
| 19,28(13)&nbsp;h
| β−
| **<sup>194</sup>Pt**
| 1−
|
|
|-id=Иридиум-194m1
| style="text-indent:1em" | 194m1Ir
| colspan="3" style="text-indent:2em" | 147,078(5)&nbsp;keV
| 31,85(24)&nbsp;ms
| IT
| 194Ir
| (4+)
|
|
|-id=Иридиум-194m2
| style="text-indent:1em" | 194m2Ir
| colspan="3" style="text-indent:2em" | 370(70)&nbsp;keV
| 171(11)&nbsp;d
|
|
| (10,11)(−#)
|
|
|-id=Иридиум-195
| 195Ir
| style="text-align:right" | 77
| style="text-align:right" | 118
| 194,9659796(18)
| 2,5(2)&nbsp;h
| β−
| **<sup>195</sup>Pt**
| 3/2+
|
|
|-id=Иридиум-195m
| rowspan=2 style="text-indent:1em" | 195mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 100(5)&nbsp;keV
| rowspan=2|3,8(2)&nbsp;h
| β− (95%)
| 195Pt
| rowspan=2|11/2−
| rowspan=2| 
| rowspan=2|
|-
| IT (5%)
| 195Ir
|-id=Иридиум-196
| 196Ir
| style="text-align:right" | 77
| style="text-align:right" | 119
| 195,96840(4)
| 52(1)&nbsp;s
| β−
| **<sup>196</sup>Pt**
| (0−)
|
|
|-id=Иридиум-196m
| rowspan=2 style="text-indent:1em" | 196mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 210(40)&nbsp;keV
| rowspan=2|1,40(2)&nbsp;h
| β− (99,7%)
| **<sup>196</sup>Pt**
| rowspan=2|(10,11−)
| rowspan=2|
| rowspan=2|
|-
| IT
| 196Ir
|-id=Иридиум-197
| 197Ir
| style="text-align:right" | 77
| style="text-align:right" | 120
| 196,969653(22)
| 5,8(5)&nbsp;min
| β−
| 197Pt
| 3/2+
|
|
|-id=Иридиум-197m
| rowspan=2 style="text-indent:1em" | 197mIr
| rowspan=2 colspan="3" style="text-indent:2em" | 115(5)&nbsp;keV
| rowspan=2|8,9(3)&nbsp;min
| β− (99,75%)
| 197Pt
| rowspan=2|11/2−
| rowspan=2|
| rowspan=2|
|-
| IT (,25%)
| 197Ir
|-id=Иридиум-198
| 198Ir
| style="text-align:right" | 77
| style="text-align:right" | 121
| 197,97228(21)#
| 8(1)&nbsp;s
| β−
| **<sup>198</sup>Pt**
|
|
|
|-id=Иридиум-199
| 199Ir
| style="text-align:right" | 77
| style="text-align:right" | 122
| 198,97380(4)
| 7(5)&nbsp;s
| β−
| 199Pt
| 3/2+#
|
|
|-id=Иридиум-199m
| style="text-indent:1em" | 199mIr
| colspan="3" style="text-indent:2em" | 130(40)#&nbsp;keV
| 235(90)&nbsp;ns
| IT
| 199Ir
| 11/2−#
|
|
|-id=Иридиум-200
| 200Ir
| style="text-align:right" | 77
| style="text-align:right" | 123
| 199,976800(210)#
| 43(6)&nbsp;s
| β−
| 200Pt
| (2-, 3-)
|
|
|-id=Иридиум-201
| 201Ir
| style="text-align:right" | 77
| style="text-align:right" | 124
| 200,978640(210)#
| 21(5)&nbsp;s
| β−
| 201Pt
| (3/2+)
|
|
|-id=Иридиум-202
| 202Ir
| style="text-align:right" | 77
| style="text-align:right" | 125
| 201,981990(320)#
| 11(3)&nbsp;s
| β−
| 202Pt
| (2-)
|
|
|-id=Иридиум-202m
| style="text-indent:1em" | 202mIr
| colspan="3" style="text-indent:2em" | 2000(1000)#&nbsp;keV
| 3,4(0,6)&nbsp;μs
| IT
| 202Ir
|
|
|

## Иридиум-192
**Иридиум-192** (симбол 192Ir) е радиоактивен изотоп на иридиумот, со време на полураспад од 73,83 дена. Се распаѓа со емитување бета (β) честички и гама (γ) зрачење. Околу 96% од 192Ir распаѓања се случуваат преку емисија на β и γ зрачење, што доведува до <sup>192</sup>Pt . Некои од β честичките се заробени од други 192Ir јадра, кои потоа се претвораат во 192Os. Зафаќањето на електрони е одговорно за преостанатите 4% од распаѓањата на 192Ir. Иридиум-192 обично се добива со неутронско активирање на иридиумов метал што го има во изобилство во природата.

Иридиум-192 е многу силен емитер на гама- зраци, со гама-доза-константа од приближно 1,54 μSv ·h−1 · MBq−1 на 30 см, и специфична активност од 341 TBq ·g−1 (9,22 kCi ·g−1 ). Постојат седум главни енергетски пакети произведени за време на неговиот процес на распаѓање кои се движат од нешто повеќе од 0,2 до околу 0,6 MeV.

Изомерот 192m2Ir е необичен, и поради неговото долго време на полураспад за изомер,  време на полураспад кое значително го надминува она на основната состојба на истиот изотоп.

## Белешки


## Наводи

## Надворешни врски
* NLM Hazardous Substances Databank &ndash; Iridium, Radioactive (referring to iridium-192)

Иридиум
Категорија:Иридиум
Категорија:Изотопи на иридиумот