鎢(原子量:183.84(1))共有46個同位素,其中有5種在自然界出現,當中180
W
具有極長的半衰期,其他4種理論上具有放射性但是迄今為止尚未觀測到。
Quick Facts 同位素, 衰變 ...
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
標準原子質量(英語:Standard atomic weight) (Ar, 標準) |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Close
圖表
More information 符號, Z ...
符號 | Z | N | 同位素質量(u) [n 1][n 2] |
半衰期 [n 1][n 2][n 3] |
衰變 方式[2] |
衰變 產物 [n 4][n 5] |
原子核 自旋[n 1] |
相對豐度 (莫耳分率)[n 2] |
相對豐度 的變化量 (莫耳分率) |
---|---|---|---|---|---|---|---|---|---|
激發能量[n 2] | |||||||||
158W | 74 | 84 | 157.97456(54)# | 1.37(17) ms | α | 154Hf | 0+ | ||
158mW | 1889(8) keV | 143(19) µs | 8+ | ||||||
159W | 74 | 85 | 158.97292(43)# | 8.2(7) ms | α (82%) | 155Hf | 7/2−# | ||
β+ (18%) | 159Ta | ||||||||
160W | 74 | 86 | 159.96848(22) | 90(5) ms | α (87%) | 156Hf | 0+ | ||
β+ (14%) | 160Ta | ||||||||
161W | 74 | 87 | 160.96736(21)# | 409(16) ms | α (73%) | 157Hf | 7/2−# | ||
β+ (23%) | 161Ta | ||||||||
162W | 74 | 88 | 161.963497(19) | 1.36(7) s | β+ (53%) | 162Ta | 0+ | ||
α (47%) | 158Hf | ||||||||
163W | 74 | 89 | 162.96252(6) | 2.8(2) s | β+ (59%) | 163Ta | 3/2−# | ||
α (41%) | 159Hf | ||||||||
164W | 74 | 90 | 163.958954(13) | 6.3(2) s | β+ (97.4%) | 164Ta | 0+ | ||
α (2.6%) | 160Hf | ||||||||
165W | 74 | 91 | 164.958280(27) | 5.1(5) s | β+ (99.8%) | 165Ta | 3/2−# | ||
α (.2%) | 161Hf | ||||||||
166W | 74 | 92 | 165.955027(11) | 19.2(6) s | β+ (99.96%) | 166Ta | 0+ | ||
α (.035%) | 162Hf | ||||||||
167W | 74 | 93 | 166.954816(21) | 19.9(5) s | β+ (>99.9%) | 167Ta | 3/2−# | ||
α (<.1%) | 163Hf | ||||||||
168W | 74 | 94 | 167.951808(17) | 51(2) s | β+ (99.99%) | 168Ta | 0+ | ||
α (.0319%) | 164Hf | ||||||||
169W | 74 | 95 | 168.951779(17) | 76(6) s | β+ | 169Ta | (5/2−) | ||
170W | 74 | 96 | 169.949228(16) | 2.42(4) min | β+(99%) | 170Ta | 0+ | ||
α (1%) | 166Hf | ||||||||
171W | 74 | 97 | 170.94945(3) | 2.38(4) min | β+ | 171Ta | (5/2−) | ||
172W | 74 | 98 | 171.94729(3) | 6.6(9) min | β+ | 172Ta | 0+ | ||
173W | 74 | 99 | 172.94769(3) | 7.6(2) min | β+ | 173Ta | 5/2− | ||
174W | 74 | 100 | 173.94608(3) | 33.2(21) min | β+ | 174Ta | 0+ | ||
175W | 74 | 101 | 174.94672(3) | 35.2(6) min | β+ | 175Ta | (1/2−) | ||
176W | 74 | 102 | 175.94563(3) | 2.5(1) h | ε | 176Ta | 0+ | ||
177W | 74 | 103 | 176.94664(3) | 132(2) min | β+ | 177Ta | 1/2− | ||
178W | 74 | 104 | 177.945876(16) | 21.6(3) d | ε | 178Ta | 0+ | ||
179W | 74 | 105 | 178.947070(17) | 37.05(16) min | β+ | 179Ta | (7/2)− | ||
179m1W | 221.926(8) keV | 6.40(7) min | IT (99.72%) | 179W | (1/2)− | ||||
β+ (.28%) | 179Ta | ||||||||
179m2W | 1631.90(8) keV | 390(30) ns | (21/2+) | ||||||
179m3W | 3348.45(16) keV | 750(80) ns | (35/2−) | ||||||
180W[n 6] | 74 | 106 | 179.946704(4) | 1.8(0.2)×1018 y | α | 176Hf | 0+ | 0.0012(1) | |
180m1W | 1529.04(3) keV | 5.47(9) ms | IT | 180W | 8− | ||||
180m2W | 3264.56(21) keV | 2.33(19) µs | 14− | ||||||
181W | 74 | 107 | 180.948197(5) | 121.2(2) d | ε | 181Ta | 9/2+ | ||
182W | 74 | 108 | 181.9482042(9) | 觀測上穩定 [n 7] | 0+ | 0.2650(16) | |||
183W | 74 | 109 | 182.9502230(9) | 觀測上穩定 [n 8] | 1/2− | 0.1431(4) | |||
183mW | 309.493(3) keV | 5.2(3) s | IT | 183W | 11/2+ | ||||
184W | 74 | 110 | 183.9509312(9) | 觀測上穩定 [n 9] | 0+ | 0.3064(2) | |||
185W | 74 | 111 | 184.9534193(10) | 75.1(3) d | β− | 185Re | 3/2− | ||
185mW | 197.43(5) keV | 1.597(4) min | IT | 185W | 11/2+ | ||||
186W | 74 | 112 | 185.9543641(19) | 觀測上穩定 [n 10] | 0+ | 0.2843(19) | |||
186m1W | 1517.2(6) keV | 18(1) µs | (7−) | ||||||
186m2W | 3542.8(21) keV | >3 ms | (16+) | ||||||
187W | 74 | 113 | 186.9571605(19) | 23.72(6) h | β− | 187Re | 3/2− | ||
188W | 74 | 114 | 187.958489(4) | 69.78(5) d | β− | 188Re | 0+ | ||
189W | 74 | 115 | 188.96191(21) | 11.6(3) min | β− | 189Re | (3/2−) | ||
190W | 74 | 116 | 189.96318(18) | 30.0(15) min | β− | 190Re | 0+ | ||
190mW | 2381(5) keV | <3.1 ms | (10−) | ||||||
191W | 74 | 117 | 190.96660(21)# | 20# s [>300 ns] |
3/2−# | ||||
192W | 74 | 118 | 191.96817(64)# | 10# s [>300 ns] |
0+ |
Close
- 畫上#號的數據代表沒有經過實驗的証明,僅為理論推測。
- 用括號括起來的數據代表不確定性。
- 半衰期超過5億年的同位素以粗體表示。
- 半衰期超過5億年的衰變產物以粗斜體表示。
- Primordial radionuclide
← | 同位素列表 | → |
鉭的同位素 | 鎢的同位素 | 錸的同位素 |
參考文獻
- Meija, Juris; et al. Atomic weights of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry. 2016, 88 (3): 265–91. doi:10.1515/pac-2015-0305.
- Universal Nuclide Chart. nucleonica. [2015-10-06]. (原始內容
存檔於2017-02-19). 含有內容需登入查看的頁面 (link)
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report) (頁面存檔備份,存於互聯網檔案館). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005) (頁面存檔備份,存於互聯網檔案館).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties (頁面存檔備份,存於互聯網檔案館), Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (頁面存檔備份,存於互聯網檔案館) (retrieved Sept. 2005).
- David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.