{{위키데이터 속성 추적}}
자연계에 존재하는 [[텅스텐]]의 안정 동위 원소는 4종으로 <sup>182</sup>W, <sup>183</sup>W, <sup>184</sup>W, <sup>186</sup>W이 존재하고 있다.
<sup>186</sup>W은 반감기가 존재할 것으로 예상되지만 아직 붕괴되는 모습이 관측되지 않았으며 어쩌면 붕괴하지 않을 수도 있다.

나머지 3종인 <sup>182</sup>W, <sup>183</sup>W, <sup>184</sup>W도 매우 긴 [[반감기]]를 가지고 있을 것으로 예상되지만, 역시 예상과는 다르게 붕괴하지 않을 수도 있다.

<sup>180</sup>W은 1.8 x 10<sup>18</sup>년의 반감기를 가지고 있으며 <sup>176</sup>Hf으로 붕괴한다.

텅스텐의 인공 동위 원소는 <sup>158</sup>W부터 <sup>192</sup>W까지 합성되었으며 이들 중 <sup>181</sup>W의 반감기가 121.2일로 가장 길다.

== 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<ref group="n">안정 동위 원소는 굵은체로 표기, 우주의 나이보다 반감기가 긴 동위 원소의 반감기는 굵은 흘림체로 표기</ref>
! 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 굵은체로 표기, 우주의 나이보다 반감기가 긴 동위 원소는 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>158</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 84
| 157.97456(54)#
| 1.37(17) ms
| [[알파 붕괴|α]]
| <sup>154</sup>Hf
| 0+
|
|
|-
| style="text-indent:1em" | <sup>158m</sup>W
| colspan="3" style="text-indent:2em" | 1889(8) keV
| 143(19) µs
|
|
| 8+
|
|
|-
| rowspan=2|<sup>159</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 85
| rowspan=2|158.97292(43)#
| rowspan=2|8.2(7) ms
| α (82%)
| <sup>155</sup>Hf
| rowspan=2|7/2-#
| rowspan=2|
| rowspan=2|
|-
| [[베타 붕괴|β<sup>+</sup>]] (18%)
| <sup>159</sup>Ta
|-
| rowspan=2|<sup>160</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 86
| rowspan=2|159.96848(22)
| rowspan=2|90(5) ms
| α (87%)
| <sup>156</sup>Hf
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (14%)
| <sup>160</sup>Ta
|-
| rowspan=2|<sup>161</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 87
| rowspan=2|160.96736(21)#
| rowspan=2|409(16) ms
| α (73%)
| <sup>157</sup>Hf
| rowspan=2|7/2-#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (23%)
| <sup>161</sup>Ta
|-
| rowspan=2|<sup>162</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 88
| rowspan=2|161.963497(19)
| rowspan=2|1.36(7) s
| β<sup>+</sup> (53%)
| <sup>162</sup>Ta
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (47%)
| <sup>158</sup>Hf
|-
| rowspan=2|<sup>163</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 89
| rowspan=2|162.96252(6)
| rowspan=2|2.8(2) s
| β<sup>+</sup> (59%)
| <sup>163</sup>Ta
| rowspan=2|3/2-#
| rowspan=2|
| rowspan=2|
|-
| α (41%)
| <sup>159</sup>Hf
|-
| rowspan=2|<sup>164</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 90
| rowspan=2|163.958954(13)
| rowspan=2|6.3(2) s
| β<sup>+</sup> (97.4%)
| <sup>164</sup>Ta
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (2.6%)
| <sup>160</sup>Hf
|-
| rowspan=2|<sup>165</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 91
| rowspan=2|164.958280(27)
| rowspan=2|5.1(5) s
| β<sup>+</sup> (99.8%)
| <sup>165</sup>Ta
| rowspan=2|3/2-#
| rowspan=2|
| rowspan=2|
|-
| α (0.2%)
| <sup>161</sup>Hf
|-
| rowspan=2|<sup>166</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 92
| rowspan=2|165.955027(11)
| rowspan=2|19.2(6) s
| β<sup>+</sup> (99.96%)
| <sup>166</sup>Ta
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (0.035%)
| <sup>162</sup>Hf
|-
| rowspan=2|<sup>167</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 93
| rowspan=2|166.954816(21)
| rowspan=2|19.9(5) s
| β<sup>+</sup> (>99.9%)
| <sup>167</sup>Ta
| rowspan=2|3/2-#
| rowspan=2|
| rowspan=2|
|-
| α (<0.1%)
| <sup>163</sup>Hf
|-
| rowspan=2|<sup>168</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 94
| rowspan=2|167.951808(17)
| rowspan=2|51(2) s
| β<sup>+</sup> (99.99%)
| <sup>168</sup>Ta
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (0.0319%)
| <sup>164</sup>Hf
|-
| <sup>169</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 95
| 168.951779(17)
| 76(6) s
| β<sup>+</sup>
| <sup>169</sup>Ta
| (5/2-)
|
|
|-
| rowspan=2|<sup>170</sup>W
| rowspan=2 style="text-align:right" | 74
| rowspan=2 style="text-align:right" | 96
| rowspan=2|169.949228(16)
| rowspan=2|2.42(4) min
| β<sup>+</sup>(99%)
| <sup>170</sup>Ta
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (1%)
| <sup>166</sup>Hf
|-
| <sup>171</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 97
| 170.94945(3)
| 2.38(4) min
| β<sup>+</sup>
| <sup>171</sup>Ta
| (5/2-)
|
|
|-
| <sup>172</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 98
| 171.94729(3)
| 6.6(9) min
| β<sup>+</sup>
| <sup>172</sup>Ta
| 0+
|
|
|-
| <sup>173</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 99
| 172.94769(3)
| 7.6(2) min
| β<sup>+</sup>
| <sup>173</sup>Ta
| 5/2-
|
|
|-
| <sup>174</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 100
| 173.94608(3)
| 33.2(21) min
| β<sup>+</sup>
| <sup>174</sup>Ta
| 0+
|
|
|-
| <sup>175</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 101
| 174.94672(3)
| 35.2(6) min
| β<sup>+</sup>
| <sup>175</sup>Ta
| (1/2-)
|
|
|-
| <sup>176</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 102
| 175.94563(3)
| 2.5(1) h
| [[전자 포획|ε]]
| <sup>176</sup>Ta
| 0+
|
|
|-
| <sup>177</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 103
| 176.94664(3)
| 132(2) min
| β<sup>+</sup>
| <sup>177</sup>Ta
| 1/2-
|
|
|-
| <sup>178</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 104
| 177.945876(16)
| 21.6(3) d
| ε
| <sup>178</sup>Ta
| 0+
|
|
|-
| <sup>179</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 105
| 178.947070(17)
| 37.05(16) min
| β<sup>+</sup>
| <sup>179</sup>Ta
| (7/2)-
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>179m1</sup>W
| rowspan=2 colspan="3" style="text-indent:2em" | 221.926(8) keV
| rowspan=2|6.40(7) min
| [[이성질핵 전이|IT]] (99.72%)
| <sup>179</sup>W
| rowspan=2|(1/2)-
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (0.28%)
| <sup>179</sup>Ta
|-
| style="text-indent:1em" | <sup>179m2</sup>W
| colspan="3" style="text-indent:2em" | 1631.90(8) keV
| 390(30) ns
|
|
| (21/2+)
|
|
|-
| style="text-indent:1em" | <sup>179m3</sup>W
| colspan="3" style="text-indent:2em" | 3348.45(16) keV
| 750(80) ns
|
|
| (35/2-)
|
|
|-
| <sup>180</sup>W<ref group="n">[[태양계]] 초창기부터 존재해 왔었던 방사성 핵자</ref>
| style="text-align:right" | 74
| style="text-align:right" | 106
| 179.946704(4)
| '''1.8±0.2&times;10<sup>18</sup> a'''
| α
| '''<sup>176</sup>Hf'''
| 0+
| 0.0012(1)
|
|-
| style="text-indent:1em" | <sup>180m1</sup>W
| colspan="3" style="text-indent:2em" | 1529.04(3) keV
| 5.47(9) ms
| IT
| '''''<sup>180</sup>W'''''
| 8-
|
|
|-
| style="text-indent:1em" | <sup>180m2</sup>W
| colspan="3" style="text-indent:2em" | 3264.56(21) keV
| 2.33(19) µs
|
|
| 14-
|
|
|-
| <sup>181</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 107
| 180.948197(5)
| 121.2(2) d
| ε
| '''<sup>181</sup>Ta'''
| 9/2+
|
|
|-
| <sup>182</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 108
| 181.9482042(9)
| colspan=3 align=center|'''관찰 안정'''<ref group="n">α 붕괴를 통해 '''<sup>178</sup>Hf'''으로 붕괴할 수 있으며 반감기는 10<sup>873</sup> 년을 초과할 것으로 예상된다.</ref>
| 0+
| 0.2650(16)
|
|-
| <sup>183</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 109
| 182.9502230(9)
| colspan=3 align=center|'''관찰 안정'''<ref group="n">α 붕괴를 통해 '''<sup>179</sup>Hf'''으로 붕괴할 수 있으며 반감기는 10<sup>373</sup> 년을 초과할 것으로 예상된다.</ref>
| 1/2-
| 0.1431(4)
|
|-
| style="text-indent:1em" | <sup>183m</sup>W
| colspan="3" style="text-indent:2em" | 309.493(3) keV
| 5.2(3) s
| IT
| '''<sup>183</sup>W'''
| 11/2+
|
|
|-
| <sup>184</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 110
| 183.9509312(9)
| colspan=3 align=center|'''관찰 안정'''<ref group="n">α 붕괴를 통해 '''<sup>180</sup>Hf'''으로 붕괴할 수 있으며 반감기는 10<sup>430</sup>년을 초과할 것으로 예상된다.</ref>
| 0+
| 0.3064(2)
|
|-
| <sup>185</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 111
| 184.9534193(10)
| 75.1(3) d
| β<sup>-</sup>
| '''<sup>185</sup>Re'''
| 3/2-
|
|
|-
| style="text-indent:1em" | <sup>185m</sup>W
| colspan="3" style="text-indent:2em" | 197.43(5) keV
| 1.597(4) min
| IT
| <sup>185</sup>W
| 11/2+
|
|
|-
| <sup>186</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 112
| 185.9543641(19)
| colspan=3 align=center|'''관찰 안정'''<ref group="n">α 붕괴를 통해 <sup>182</sup>Hf으로 붕괴할 수 있으며 반감기는 1.8×10<sup>290</sup> 년을 초과할 것으로 예상된다.</ref>
| 0+
| 0.2843(19)
|
|-
| style="text-indent:1em" | <sup>186m1</sup>W
| colspan="3" style="text-indent:2em" | 1517.2(6) keV
| 18(1) µs
|
|
| (7-)
|
|
|-
| style="text-indent:1em" | <sup>186m2</sup>W
| colspan="3" style="text-indent:2em" | 3542.8(21) keV
| >3 ms
|
|
| (16+)
|
|
|-
| <sup>187</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 113
| 186.9571605(19)
| 23.72(6) h
| β<sup>-</sup>
| '''''<sup>187</sup>Re'''''
| 3/2-
|
|
|-
| <sup>188</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 114
| 187.958489(4)
| 69.78(5) d
| β<sup>-</sup>
| <sup>188</sup>Re
| 0+
|
|
|-
| <sup>189</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 115
| 188.96191(21)
| 11.6(3) min
| β<sup>-</sup>
| <sup>189</sup>Re
| (3/2-)
|
|
|-
| <sup>190</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 116
| 189.96318(18)
| 30.0(15) min
| β<sup>-</sup>
| <sup>190</sup>Re
| 0+
|
|
|-
| style="text-indent:1em" | <sup>190m</sup>W
| colspan="3" style="text-indent:2em" | 2381(5) keV
| <3.1 ms
|
|
| (10-)
|
|
|-
| <sup>191</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 117
| 190.96660(21)#
| 20# s<br />[>300 ns]
|
|
| 3/2-#
|
|
|-
| <sup>192</sup>W
| style="text-align:right" | 74
| style="text-align:right" | 118
| 191.96817(64)#
| 10# s<br />[>300 ns]
|
|
| 0+
|
|
|}
<references group="n" />

== 각주 ==
<references/>

{{동위 원소 색인}}

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