{{위키데이터 속성 추적}}
자연계에 존재하는 '''[[이터븀]]''' 또는 '''이테르븀'''의 [[안정 동위 원소]]는 7종으로 <sup>168</sup>Yb, <sup>170</sup>Yb, <sup>171</sup>Yb, <sup>172</sup>Yb, <sup>173</sup>Yb, <sup>174</sup>Yb, <sup>176</sup>Yb이 존재한다. 이들 중 <sup>168</sup>Yb과 <sup>176</sup>Yb은 반감기가 존재할 것으로 예상되지만, 예상과는 다르게 붕괴하지 않을 수도 있다.

<sup>174</sup>Yb은 이터븀의 안정 동위 원소들 중 존재비가 가장 풍부하다.

== 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.</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>148</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 78
| 147.96742(64)#
| 250# ms
| [[베타 붕괴|β<sup>+</sup>]]
| <sup>148</sup>Tm
| 0+
|
|
|-
| <sup>149</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 79
| 148.96404(54)#
| 0.7(2) s
| β<sup>+</sup>
| <sup>149</sup>Tm
| (1/2+,3/2+)
|
|
|-
| <sup>150</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 80
| 149.95842(43)#
| 700# ms [>200 ns]
| β<sup>+</sup>
| <sup>150</sup>Tm
| 0+
|
|
|-
| rowspan=2|<sup>151</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 81
| rowspan=2|150.95540(32)
| rowspan=2|1.6(5) s
| β<sup>+</sup>
| <sup>151</sup>Tm
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, [[양성자 방출|p]] (드묾)
| <sup>150</sup>Er
|-
| rowspan=2 style="text-indent:1em" | <sup>151m1</sup>Yb
| rowspan=2 colspan="3" style="text-indent:2em" | 750(100)# keV
| rowspan=2|1.6(5) s
| β<sup>+</sup>
| <sup>151</sup>Tm
| rowspan=2|(11/2-)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>150</sup>Er
|- 
| style="text-indent:1em" | <sup>151m2</sup>Yb
| colspan="3" style="text-indent:2em" | 1790(500)# keV
| 2.6(7) µs
|
|
| 19/2-#
|
|
|-
| style="text-indent:1em" | <sup>151m3</sup>Yb
| colspan="3" style="text-indent:2em" | 2450(500)# keV
| 20(1) µs
|
|
| 27/2-#
|
|
|-
| rowspan=2|<sup>152</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 82
| rowspan=2|151.95029(22)
| rowspan=2|3.04(6) s
| β<sup>+</sup>
| <sup>152</sup>Tm
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>151</sup>Er
|-
| rowspan=3|<sup>153</sup>Yb
| rowspan=3 style="text-align:right" | 70
| rowspan=3 style="text-align:right" | 83
| rowspan=3|152.94948(21)#
| rowspan=3|4.2(2) s
| [[알파 붕괴|α]] (50%)
| <sup>149</sup>Er
| rowspan=3|7/2-#
| rowspan=3|
| rowspan=3|
|-
| β<sup>+</sup> (50%)
| <sup>153</sup>Tm
|-
| β<sup>+</sup>, p (0.008%)
| <sup>152</sup>Er
|-
| style="text-indent:1em" | <sup>153m</sup>Yb
| colspan="3" style="text-indent:2em" | 2700(100) keV
| 15(1) µs
|
|
| (27/2-)
|
|
|-
| rowspan=2|<sup>154</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 84
| rowspan=2|153.946394(19)
| rowspan=2|0.409(2) s
| α (92.8%)
| <sup>150</sup>Er
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (7.119%)
| <sup>154</sup>Tm
|-
| rowspan=2|<sup>155</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 85
| rowspan=2|154.945782(18)
| rowspan=2|1.793(19) s
| α (89%)
| <sup>151</sup>Er
| rowspan=2|(7/2-)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (11%)
| <sup>155</sup>Tm
|-
| rowspan=2|<sup>156</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 86
| rowspan=2|155.942818(12)
| rowspan=2|26.1(7) s
| β<sup>+</sup> (90%)
| <sup>156</sup>Tm
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (10%)
| <sup>152</sup>Er
|-
| rowspan=2|<sup>157</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 87
| rowspan=2|156.942628(11)
| rowspan=2|38.6(10) s
| β<sup>+</sup> (99.5%)
| <sup>157</sup>Tm
| rowspan=2|7/2-
| rowspan=2|
| rowspan=2|
|-
| α (0.5%)
| <sup>153</sup>Er
|-
| rowspan=2|<sup>158</sup>Yb
| rowspan=2 style="text-align:right" | 70
| rowspan=2 style="text-align:right" | 88
| rowspan=2|157.939866(9)
| rowspan=2|1.49(13) min
| β<sup>+</sup> (99.99%)
| <sup>158</sup>Tm
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (0.0021%)
| <sup>154</sup>Er
|-
| <sup>159</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 89
| 158.94005(2)
| 1.67(9) min
| β<sup>+</sup>
| <sup>159</sup>Tm
| 5/2(-)
|
|
|-
| <sup>160</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 90
| 159.937552(18)
| 4.8(2) min
| β<sup>+</sup>
| <sup>160</sup>Tm
| 0+
|
|
|-
| <sup>161</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 91
| 160.937902(17)
| 4.2(2) min
| β<sup>+</sup>
| <sup>161</sup>Tm
| 3/2-
|
|
|-
| <sup>162</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 92
| 161.935768(17)
| 18.87(19) min
| β<sup>+</sup>
| <sup>162</sup>Tm
| 0+
|
|
|-
| <sup>163</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 93
| 162.936334(17)
| 11.05(25) min
| β<sup>+</sup>
| <sup>163</sup>Tm
| 3/2-
|
|
|-
| <sup>164</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 94
| 163.934489(17)
| 75.8(17) min
| [[전자 포획|ε]]
| <sup>164</sup>Tm
| 0+
|
|
|-
| <sup>165</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 95
| 164.93528(3)
| 9.9(3) min
| β<sup>+</sup>
| <sup>165</sup>Tm
| 5/2-
|
|
|-
| <sup>166</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 96
| 165.933882(9)
| 56.7(1) h
| ε
| <sup>166</sup>Tm
| 0+
|
|
|-
| <sup>167</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 97
| 166.934950(5)
| 17.5(2) min
| β<sup>+</sup>
| <sup>167</sup>Tm
| 5/2-
|
|
|-
| <sup>168</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 98
| 167.933897(5)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 '''<sup>164</sup>Er'''으로 붕괴하거나 또는 β<sup>+</sup>β<sup>+</sup> 붕괴를 통해 '''<sup>168</sup>Er'''으로 붕괴할 수 있으며 반감기는 3.3×10<sup>17</sup> 년을 초과할 것으로 예상된다.</ref>
| 0+
| 0.0013(1)
|
|-
| <sup>169</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 99
| 168.935190(5)
| 32.026(5) d
| ε
| '''<sup>169</sup>Tm'''
| 7/2+
|
|
|-
| style="text-indent:1em" | <sup>169m</sup>Yb
| colspan="3" style="text-indent:2em" | 24.199(3) keV
| 46(2) s
| [[이성질핵 전이|IT]]
| <sup>169</sup>Yb
| 1/2-
|
|
|-
| <sup>170</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 100
| 169.9347618(26)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 '''<sup>166</sup>Er'''으로 붕괴할 수 있다고 여겨진다.</ref>
| 0+
| 0.0304(15)
|
|-
| style="text-indent:1em" | <sup>170m</sup>Yb
| colspan="3" style="text-indent:2em" | 1258.46(14) keV
| 370(15) ns
|
|
| 4-
|
|
|-
| <sup>171</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 101
| 170.9363258(26)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 '''<sup>167</sup>Er'''으로 붕괴할 수 있다고 여겨진다.</ref>
| 1/2-
| 0.1428(57)
|
|-
| style="text-indent:1em" | <sup>171m1</sup>Yb
| colspan="3" style="text-indent:2em" | 95.282(2) keV
| 5.25(24) ms
| IT
| <sup>171</sup>Yb
| 7/2+
|
|
|-
| style="text-indent:1em" | <sup>171m2</sup>Yb
| colspan="3" style="text-indent:2em" | 122.416(2) keV
| 265(20) ns
|
|
| 5/2-
|
|
|-
| <sup>172</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 102
| 171.9363815(26)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 '''<sup>168</sup>Er'''으로 붕괴할 수 있다고 여겨진다.</ref>
| 0+
| 0.2183(67)
|
|-
| <sup>173</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 103
| 172.9382108(26)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 <sup>169</sup>Er으로 붕괴할 수 있다고 여겨진다.</ref>
| 5/2-
| 0.1613(27)
|
|-
| style="text-indent:1em" | <sup>173m</sup>Yb
| colspan="3" style="text-indent:2em" | 398.9(5) keV
| 2.9(1) µs
|
|
| 1/2-
|
|
|-
| <sup>174</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 104
| 173.9388621(26)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 '''<sup>170</sup>Er'''으로 붕괴할 수 있다고 여겨진다.</ref>
| 0+
| 0.3183(92)
|
|-
| <sup>175</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 105
| 174.9412765(26)
| 4.185(1) d
| β<sup>-</sup>
| '''<sup>175</sup>Lu'''
| 7/2-
|
|
|-
| style="text-indent:1em" | <sup>175m</sup>Yb
| colspan="3" style="text-indent:2em" | 514.865(4) keV
| 68.2(3) ms
|
|
| 1/2-
|
|
|-
| <sup>176</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 106
| 175.9425717(28)
| colspan=3 align=center|'''관측상 안정'''<ref group="n">α 붕괴를 통해 <sup>172</sup>Er으로 붕괴하거나 또는 β<sup>-</sup>β<sup>-</sup> 붕괴를 통해 '''<sup>176</sup>Hf'''으로 붕괴할 수 있으며 반감기는 6.8×10<sup>22</sup>년을 초과할 것으로 예상된다.</ref>
| 0+
| 0.1276(41)
|
|-
| style="text-indent:1em" | <sup>176m</sup>Yb
| colspan="3" style="text-indent:2em" | 1050.0(3) keV
| 11.4(3) s
|
|
| (8)-
|
|
|-
| <sup>177</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 107
| 176.9452608(28)
| 1.911(3) h
| β<sup>-</sup>
| <sup>177</sup>Lu
| (9/2+)
|
|
|-
| style="text-indent:1em" | <sup>177m</sup>Yb
| colspan="3" style="text-indent:2em" | 331.5(3) keV
| 6.41(2) s
| IT
| <sup>177</sup>Yb
| (1/2-)
|
|
|-
| <sup>178</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 108
| 177.946647(11)
| 74(3) min
| β<sup>-</sup>
| <sup>178</sup>Lu
| 0+
|
|
|-
| <sup>179</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 109
| 178.95017(32)#
| 8.0(4) min
| β<sup>-</sup>
| <sup>179</sup>Lu
| (1/2-)
|
|
|-
| <sup>180</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 110
| 179.95233(43)#
| 2.4(5) min
| β<sup>-</sup>
| <sup>180</sup>Lu
| 0+
|
|
|-
| <sup>181</sup>Yb
| style="text-align:right" | 70
| style="text-align:right" | 111
| 180.95615(43)#
| 1# min
| β<sup>-</sup>
| <sup>181</sup>Lu
| 3/2-#
|
|
|}
<references group="n" />

== 각주 ==
<references/>

{{동위 원소 색인}}

{{전거 통제}}

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