{{위키데이터 속성 추적}}
자연계에 존재하는 [[이리듐]]의 [[안정 동위 원소]]는 2개로 <sup>191</sup>Ir, <sup>193</sup>Ir이 있다.

인공적으로 만들어진 이리듐의 동위 원소는 <sup>164</sup>Ir부터 <sup>199</sup>Ir까지 있는데, 이들 중 <sup>194m2</sup>Ir의 [[반감기]]가 171일, <sup>192</sup>Ir의 반감기는 73.8일로 이리듐의 인공 동위 원소들 중 가장 긴 반감기를 가지고 있다.

== 표 ==
{| class="wikitable" style="font-size:95%; white-space:nowrap"
! rowspan="2" | 핵자<br />수
! Z([[양성자|p]])
! N([[중성자|n]])
! &nbsp;<br />동위 원소 질량 (u)<br />&nbsp;
! rowspan="2" | 반감기
! rowspan="2" | 붕괴<br />방식<ref>http://www.nucleonica.net/unc.aspx</ref><ref group="n">약어:<br />ε: [[전자 포획]]<br />IT: [[이성질핵 전이]]</ref>
! rowspan="2" | 붕괴 생성<br />동위 원소<ref group="n">안정 동위 원소는 굵은 글씨로 표기, 우주의 나이보다 반감기가 긴 동위 원소의 반감기는 굵은 흘림체로 표기</ref>
! rowspan="2" | 핵<br />스핀
! rowspan="2" | 자연계에 존재하는<br />동위 원소<br />범위<br />(몰 분율)
! rowspan="2" | 자연계에 존재하는<br />최대 범위<br />(몰 분율)
|-
! colspan="3" | 들뜬 에너지
|-
| <sup>164</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 87
| 163.99220(44)#
| 1# ms
|
|
| 2-#
|
|
|-
| style="text-indent:1em" | <sup>164m</sup>Ir
| colspan="3" style="text-indent:2em" | 270(110)# keV
| 94(27) µs
|
|
| 9+#
|
|
|-
| rowspan=2|<sup>165</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 88
| rowspan=2|164.98752(23)#
| rowspan=2|<1# µs
| [[양성자 방출|p]]
| <sup>164</sup>Os
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| [[알파 붕괴|α]] (드묾)
| <sup>161</sup>Re
|-
| rowspan=2 style="text-indent:1em" | <sup>165m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 180(50)# keV
| rowspan=2|300(60) µs
| p (87%)
| <sup>164</sup>Os
| rowspan=2|11/2-
| rowspan=2|
| rowspan=2|
|-
| α (13%)
| <sup>161</sup>Re
|-
| rowspan=2|<sup>166</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 89
| rowspan=2|165.98582(22)#
| rowspan=2|10.5(22) ms
| α (93%)
| <sup>162</sup>Re
| rowspan=2|(2-)
| rowspan=2|
| rowspan=2|
|-
| p (7%)
| <sup>165</sup>Os
|-
| rowspan=2 style="text-indent:1em" | <sup>166m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 172(6) keV
| rowspan=2|15.1(9) ms
| α (98.2%)
| <sup>162</sup>Re
| rowspan=2|(9+)
| rowspan=2|
| rowspan=2|
|-
| p (1.8%)
| <sup>165</sup>Os
|-
| rowspan=3|<sup>167</sup>Ir
| rowspan=3 style="text-align:right" | 77
| rowspan=3 style="text-align:right" | 90
| rowspan=3|166.981665(20)
| rowspan=3|35.2(20) ms
| α (48%)
| <sup>163</sup>Re
| rowspan=3|1/2+
| rowspan=3|
| rowspan=3|
|-
| p (32%)
| <sup>166</sup>Os
|-
| [[베타 붕괴|β<sup>+</sup>]] (20%)
| <sup>167</sup>Os
|-
| rowspan=3 style="text-indent:1em" | <sup>167m</sup>Ir
| rowspan=3 colspan="3" style="text-indent:2em" | 175.3(22) keV
| rowspan=3|30.0(6) ms
| α (80%)
| <sup>163</sup>Re
| rowspan=3|11/2-
| rowspan=3|
| rowspan=3|
|-
| β<sup>+</sup> (20%)
| <sup>167</sup>Os
|-
| p (0.4%)
| <sup>166</sup>Os
|-
| rowspan=2|<sup>168</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 91
| rowspan=2|167.97988(16)#
| rowspan=2|161(21) ms
| α
| <sup>164</sup>Re
| rowspan=2|high
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| <sup>168</sup>Os
|-
| style="text-indent:1em" | <sup>168m</sup>Ir
| colspan="3" style="text-indent:2em" | 50(100)# keV
| 125(40) ms
| α
| <sup>164</sup>Re
| low
|
|
|-
| rowspan=2|<sup>169</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 92
| rowspan=2|168.976295(28)
| rowspan=2|780(360) ms<br />[0.64(+46-24) s]
| α
| <sup>165</sup>Re
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| <sup>169</sup>Os
|-
| rowspan=2 style="text-indent:1em" | <sup>169m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 154(24) keV
| rowspan=2|308(22) ms
| α (72%)
| <sup>165</sup>Re
| rowspan=2|11/2-#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (28%)
| <sup>169</sup>Os
|-
| rowspan=2|<sup>170</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 93
| rowspan=2|169.97497(11)#
| rowspan=2|910(150) ms<br />[0.87(+18-12) s]
| β<sup>+</sup> (64%)
| <sup>170</sup>Os
| rowspan=2|low#
| rowspan=2|
| rowspan=2|
|-
| α (36%)
| <sup>166</sup>Re
|-
| style="text-indent:1em" | <sup>170m</sup>Ir
| colspan="3" style="text-indent:2em" | 270(70)# keV
| 440(60) ms
|
|
| high#
| 
| 
|-
| rowspan=2|<sup>171</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 94
| rowspan=2|170.97163(4)
| rowspan=2|3.6(10) s<br />[3.2(+13-7) s]
| α (58%)
| <sup>167</sup>Re
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (42%)
| <sup>171</sup>Os
|-
| style="text-indent:1em" | <sup>171m</sup>Ir
| colspan="3" style="text-indent:2em" | 180(30)# keV
| 1.40(10) s
|
|
| (11/2-)
|
|
|-
| rowspan=2|<sup>172</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 95
| rowspan=2|171.97046(11)#
| rowspan=2|4.4(3) s
| β<sup>+</sup> (98%)
| <sup>172</sup>Os
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (2%)
| <sup>168</sup>Re
|-
| rowspan=2 style="text-indent:1em" | <sup>172m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 280(100)# keV
| rowspan=2|2.0(1) s
| β<sup>+</sup> (77%)
| <sup>172</sup>Os
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| α (23%)
| <sup>168</sup>Re
|-
| rowspan=2|<sup>173</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 96
| rowspan=2|172.967502(15)
| rowspan=2|9.0(8) s
| β<sup>+</sup> (93%)
| <sup>173</sup>Os
| rowspan=2|(3/2+,5/2+)
| rowspan=2|
| rowspan=2|
|-
| α (7%)
| <sup>169</sup>Re
|-
| rowspan=2 style="text-indent:1em" | <sup>173m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 253(27) keV
| rowspan=2|2.20(5) s
| β<sup>+</sup> (88%)
| <sup>173</sup>Os
| rowspan=2|(11/2-)
| rowspan=2|
| rowspan=2|
|-
| α (12%)
| <sup>169</sup>Re
|-
| rowspan=2|<sup>174</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 97
| rowspan=2|173.966861(30)
| rowspan=2|7.9(6) s
| β<sup>+</sup> (99.5%)
| <sup>174</sup>Os
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (0.5%)
| <sup>170</sup>Re
|-
| rowspan=2 style="text-indent:1em" | <sup>174m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 193(11) keV
| rowspan=2|4.9(3) s
| β<sup>+</sup> (99.53%)
| <sup>174</sup>Os
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| α (0.47%)
| <sup>170</sup>Re
|-
| rowspan=2|<sup>175</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 98
| rowspan=2|174.964113(21)
| rowspan=2|9(2) s
| β<sup>+</sup> (99.15%)
| <sup>175</sup>Os
| rowspan=2|(5/2-)
| rowspan=2|
| rowspan=2|
|-
| α (0.85%)
| <sup>171</sup>Re
|-
| rowspan=2|<sup>176</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 99
| rowspan=2|175.963649(22)
| rowspan=2|8.3(6) s
| β<sup>+</sup> (97.9%)
| <sup>176</sup>Os
| rowspan=2|
| rowspan=2|
| rowspan=2|
|-
| α (2.1%)
| <sup>172</sup>Re
|-
| rowspan=2|<sup>177</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 100
| rowspan=2|176.961302(21)
| rowspan=2|30(2) s
| β<sup>+</sup> (99.94%)
| <sup>177</sup>Os
| rowspan=2|5/2-
| rowspan=2|
| rowspan=2|
|-
| α (0.06%)
| <sup>173</sup>Re
|-
| <sup>178</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 101
| 177.961082(21)
| 12(2) s
| β<sup>+</sup>
| <sup>178</sup>Os
|
|
|
|-
| <sup>179</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 102
| 178.959122(12)
| 79(1) s
| β<sup>+</sup>
| <sup>179</sup>Os
| (5/2)-
|
|
|-
| <sup>180</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 103
| 179.959229(23)
| 1.5(1) min
| β<sup>+</sup>
| <sup>180</sup>Os
| (4,5)(+#)
|
|
|-
| <sup>181</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 104
| 180.957625(28)
| 4.90(15) min
| β<sup>+</sup>
| <sup>181</sup>Os
| (5/2)-
|
|
|-
| <sup>182</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 105
| 181.958076(23)
| 15(1) min
| β<sup>+</sup>
| <sup>182</sup>Os
| (3+)
|
|
|-
| rowspan=2|<sup>183</sup>Ir
| rowspan=2 style="text-align:right" | 77
| rowspan=2 style="text-align:right" | 106
| rowspan=2|182.956846(27)
| rowspan=2|57(4) min
| β<sup>+</sup> (99.95%)
| <sup>183</sup>Os
| rowspan=2|5/2-
| rowspan=2|
| rowspan=2|
|-
| α (0.05%)
| <sup>179</sup>Re
|-
| <sup>184</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 107
| 183.95748(3)
| 3.09(3) h
| β<sup>+</sup>
| '''<sup>184</sup>Os'''
| 5-
|
|
|-
| style="text-indent:1em" | <sup>184m1</sup>Ir
| colspan="3" style="text-indent:2em" | 225.65(11) keV
| 470(30) µs
|
|
| 3+
|
|
|-
| style="text-indent:1em" | <sup>184m2</sup>Ir
| colspan="3" style="text-indent:2em" | 328.40(24) keV
| 350(90) ns
|
|
| (7)+
|
|
|-
| <sup>185</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 108
| 184.95670(3)
| 14.4(1) h
| β<sup>+</sup>
| <sup>185</sup>Os
| 5/2-
|
|
|-
| <sup>186</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 109
| 185.957946(18)
| 16.64(3) h
| β<sup>+</sup>
| '''''<sup>186</sup>Os'''''
| 5+
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>186m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 0.8(4) keV
| rowspan=2|1.92(5) h
| β<sup>+</sup>
| '''''<sup>186</sup>Os'''''
| rowspan=2|2-
| rowspan=2|
| rowspan=2|
|-
| [[이성질핵 전이|IT]] (드묾)
| <sup>186</sup>Ir
|-
| <sup>187</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 110
| 186.957363(7)
| 10.5(3) h
| β<sup>+</sup>
| '''<sup>187</sup>Os'''
| 3/2+
|
|
|-
| style="text-indent:1em" | <sup>187m1</sup>Ir
| colspan="3" style="text-indent:2em" | 186.15(4) keV
| 30.3(6) ms
| IT
| <sup>187</sup>Ir
| 9/2-
|
|
|-
| style="text-indent:1em" | <sup>187m2</sup>Ir
| colspan="3" style="text-indent:2em" | 433.81(9) keV
| 152(12) ns
|
|
| 11/2-
|
|
|-
| <sup>188</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 111
| 187.958853(8)
| 41.5(5) h
| β<sup>+</sup>
| '''<sup>188</sup>Os'''
| 1-
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>188m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 970(30) keV
| rowspan=2|4.2(2) ms
| IT
| <sup>188</sup>Ir
| rowspan=2|7+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| '''<sup>188</sup>Os'''
|-
| <sup>189</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 112
| 188.958719(14)
| 13.2(1) d
| [[전자 포획|ε]]
| '''<sup>189</sup>Os'''
| 3/2+
|
|
|-
| style="text-indent:1em" | <sup>189m1</sup>Ir
| colspan="3" style="text-indent:2em" | 372.18(4) keV
| 13.3(3) ms
| IT
| <sup>189</sup>Ir
| 11/2-
|
|
|-
| style="text-indent:1em" | <sup>189m2</sup>Ir
| colspan="3" style="text-indent:2em" | 2333.3(4) keV
| 3.7(2) ms
|
|
| (25/2)+
|
|
|-
| <sup>190</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 113
| 189.9605460(18)
| 11.78(10) d
| β<sup>+</sup>
| '''<sup>190</sup>Os'''
| 4-
|
|
|-
| style="text-indent:1em" | <sup>190m1</sup>Ir
| colspan="3" style="text-indent:2em" | 26.1(1) keV
| 1.120(3) h
| IT
| <sup>190</sup>Ir
| (1-)
|
|
|-
| style="text-indent:1em" | <sup>190m2</sup>Ir
| colspan="3" style="text-indent:2em" | 36.154(25) keV
| >2 µs
|
|
| (4)+
|
|
|-
| style="text-indent:1em" | <sup>190m3</sup>Ir
| colspan="3" style="text-indent:2em" | 376.4(1) keV
| 3.087(12) h
|
|
| (11)-
|
|
|-
| <sup>191</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 114
| 190.9605940(18)
| colspan=3 align=center|'''안정'''<ref group="n">α 붕괴를 통해 '''''<sup>187</sup>Re'''''으로 붕괴할 수 있다.</sup></ref>
| 3/2+
| 0.373(2)
|
|-
| style="text-indent:1em" | <sup>191m1</sup>Ir
| colspan="3" style="text-indent:2em" | 171.24(5) keV
| 4.94(3) s
| IT
| '''<sup>191</sup>Ir'''
| 11/2-
|
|
|-
| style="text-indent:1em" | <sup>191m2</sup>Ir
| colspan="3" style="text-indent:2em" | 2120(40) keV
| 5.5(7) 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) d
| β<sup>-</sup> (95.24%)
| '''<sup>192</sup>Pt'''
| rowspan=2|4+
| rowspan=2|
| rowspan=2|
|-
| ε (4.76%)
| '''<sup>192</sup>Os'''
|-
| style="text-indent:1em" | <sup>192m1</sup>Ir
| colspan="3" style="text-indent:2em" | 56.720(5) keV
| 1.45(5) min
|
|
| 1-
|
|
|-
| style="text-indent:1em" | <sup>192m2</sup>Ir
| colspan="3" style="text-indent:2em" | 168.14(12) keV
| 241(9) a
|
|
| (11-)
|
|
|-
| <sup>193</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 116
| 192.9629264(18)
| colspan=3 align=center|'''안정'''<ref group="n">α 붕괴를 통해 <sup>189</sup>Re으로 붕괴할 수 있다.</sup></ref>
| 3/2+
| 0.627(2)
|
|-
| style="text-indent:1em" | <sup>193m</sup>Ir
| colspan="3" style="text-indent:2em" | 80.240(6) keV
| 10.53(4) d
| IT
| '''<sup>193</sup>Ir'''
| 11/2-
|
|
|-
| <sup>194</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 117
| 193.9650784(18)
| 19.28(13) h
| β<sup>-</sup>
| '''<sup>194</sup>Pt'''
| 1-
|
|
|-
| style="text-indent:1em" | <sup>194m1</sup>Ir
| colspan="3" style="text-indent:2em" | 147.078(5) keV
| 31.85(24) ms
| IT
| <sup>194</sup>Ir
| (4+)
|
|
|-
| style="text-indent:1em" | <sup>194m2</sup>Ir
| colspan="3" style="text-indent:2em" | 370(70) keV
| 171(11) d
|
|
| (10,11)(-#)
|
|
|-
| <sup>195</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 118
| 194.9659796(18)
| 2.5(2) h
| β<sup>-</sup>
| '''<sup>195</sup>Pt'''
| 3/2+
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>195m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 100(5) keV
| rowspan=2|3.8(2) h
| β<sup>-</sup> (95%)
| <sup>195</sup>Pt
| rowspan=2|11/2-
| rowspan=2| 
| rowspan=2|
|-
| IT (5%)
| <sup>195</sup>Ir
|-
| <sup>196</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 119
| 195.96840(4)
| 52(1) s
| β<sup>-</sup>
| '''<sup>196</sup>Pt'''
| (0-)
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>196m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 210(40) keV
| rowspan=2|1.40(2) h
| β<sup>-</sup> (99.7%)
| '''<sup>196</sup>Pt'''
| rowspan=2|(10,11-)
| rowspan=2|
| rowspan=2|
|-
| IT
| <sup>196</sup>Ir
|-
| <sup>197</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 120
| 196.969653(22)
| 5.8(5) min
| β<sup>-</sup>
| <sup>197</sup>Pt
| 3/2+
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>197m</sup>Ir
| rowspan=2 colspan="3" style="text-indent:2em" | 115(5) keV
| rowspan=2|8.9(3) min
| β<sup>-</sup> (99.75%)
| <sup>197</sup>Pt
| rowspan=2|11/2-
| rowspan=2|
| rowspan=2|
|-
| IT (0.25%)
| <sup>197</sup>Ir
|-
| <sup>198</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 121
| 197.97228(21)#
| 8(1) s
| β<sup>-</sup>
| '''<sup>198</sup>Pt'''
|
|
|
|-
| <sup>199</sup>Ir
| style="text-align:right" | 77
| style="text-align:right" | 122
| 198.97380(4)
| 20# s
| β<sup>-</sup>
| <sup>199</sup>Pt
| 3/2+#
|
|
|}

{{각주|group="n"}}

== 각주 ==
{{각주}}

{{동위 원소 색인}}

[[분류:이리듐|동위 원소]]
[[분류:이리듐 동위 원소| ]]
[[분류:원소별 동위 원소 목록]]