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鿫的同位素

主要的鿫同位素
同位素 衰變
丰度 半衰期 (t1/2) 方式 能量
MeV
產物
294Og[1][2] 人造 0.7 毫秒 α 11.81[3] 290Lv
SF
←Ts117 Uue119

[4][5](Oganesson, Og)是一種人工合成元素,故不能得出其標準原子量。如同其它的人工合成元素,鿫沒有穩定同位素。至今只发现了一種鿫的同位素294Og,它有700微秒的半衰期。

Og-293

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293
Og
Og的一種同位素,目前尚未有人成功合成,但在1999年,勞倫斯伯克利國家實驗室的研究人員聲稱成功進行以下核反应

86
36
Kr
+ 208
82
Pb
293
118
Og
+
n
.

成功合成和Og,並將發現發佈於《物理評論快報[6]之後《科學》雜誌也報導這一發現[7],但後來的實驗都未能重複這些結果[8],最後在2002年6月,研究人員撤回該發現,並宣布原先兩個元素的發現結果所用的數據是由维克托·尼诺夫編造的。[9]

Og-294

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294
Og
是截至2006年唯一在實驗室中觀測到的Og同位素[10] 2006年10月9日,來自聯合核研究所及美國加州勞倫斯利福摩爾國家實驗室的研究人員宣布發現一種Og的同位素——294Og,半衰期約為890微秒,會經由α衰變,衰變成290
Lv

目前成功合成的方法是通過撞擊-249和-48離子:

249
98
Cf
+ 48
20
Ca
294
118
Og
+ 3
n

圖表

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符號 Z N 同位素質量(u
[n 1][n 2]
半衰期
[n 2]
衰變
方式
衰變
產物

原子核
自旋
294Og[11][12] 118 176 294.21392(71)# 700 μs α 290Lv[13]
SF (variable)
  1. ^ 畫上#號的數據代表沒有經過實驗的証明,僅為理論推測。
  2. ^ 2.0 2.1 用括號括起來的數據代表不確定性。

能產生Z=118複核的目標、發射體組合

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目標 發射體 CN 結果
160Gd 136Xe 296Og* 計劃嘗試
208Pb 86Kr 294Og* 至今失敗
232Th 64Ni 296Og* 計劃嘗試
238U 58Fe 296Og* 計劃嘗試
244Pu 54Cr 298Og* 計劃嘗試
248Cm 50Ti 298Og* 計劃嘗試
250Cm 50Ti 300Og* 計劃嘗試
249Cf 48Ca 297Og* 反應成功
252Cf 48Ca 300Og* 計劃嘗試
257Fm 40Ar 297Og* 計劃嘗試


同位素列表
鿬的同位素 鿫的同位素 Uue的同位素

参考文獻

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  1. ^ Oganessian, Yu. Ts.; Utyonkov, V. K.; Lobanov, Yu. V.; Abdullin, F. Sh.; Polyakov, A. N.; Sagaidak, R. N.; Shirokovsky, I. V.; Tsyganov, Yu. S.; et al. Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm+48Ca fusion reactions. Physical Review C. 2006-10-09, 74 (4): 044602 [2008-01-18]. Bibcode:2006PhRvC..74d4602O. doi:10.1103/PhysRevC.74.044602. 
  2. ^ Oganessian, Yuri Ts.; Rykaczewski, Krzysztof P. A beachhead on the island of stability. Physics Today. August 2015, 68 (8): 32–38. Bibcode:2015PhT....68h..32O. OSTI 1337838. doi:10.1063/PT.3.2880. 
  3. ^ Oganessian, Yu. Ts.; Utyonkov, V.; Lobanov, Yu.; Abdullin, F.; Polyakov, A.; Shirokovsky, I.; Tsyganov, Yu.; Gulbekian, G.; Bogomolov, S.; Gikal, B.; Mezentsev, A.; Iliev, S.; Subbotin, V.; Sukhov, A.; Voinov, A.; Buklanov, G.; Subotic, K.; Zagrebaev, V.; Itkis, M.; Patin, J.; Moody, K.; Wild, J.; Stoyer, M.; Stoyer, N.; Shaughnessy, D.; Kenneally, J.; Wilk, P.; Lougheed, R.; Il’kaev, R.; Vesnovskii, S. Measurements of cross sections and decay properties of the isotopes of elements 112, 114, and 116 produced in the fusion reactions 233,238U, 242Pu, and 248Cm+48Ca (PDF). Physical Review C. 2004, 70 (6): 064609. Bibcode:2004PhRvC..70f4609O. doi:10.1103/PhysRevC.70.064609. 
  4. ^ 全国科技名词委联合国家语言文字工作委员会召开113号、115号、117号、118号元素中文定名会. [2017-02-16]. ,半包围结构,形如“”,内奥外气,Unicode9.0暂无此字,使用表意文字描述符表达。
  5. ^ 本院化學名詞審譯委員會審譯修正通過之「化學元素一覽表」,歡迎使用並提供寶貴建議。. 國家教育研究院. 2017-04-05 [2017-04-17]. (原始内容存档于2017-04-18). 
  6. ^ Ninov, Viktor; et al.. Observation of Superheavy Nuclei Produced in the Reaction of 86Kr with 208Pb. Physical Review Letters. 1999, 83: 1104–1107. doi:10.1103/PhysRevLett.83.1104. 
  7. ^ Service, R. F. Berkeley Crew Bags Element 118. Science. 1999, 284: 1751. doi:10.1126/science.284.5421.1751. 
  8. ^ Public Affairs Department. Results of element 118 experiment retracted. Berkeley Lab. 2001-07-21 [2008-01-18]. (原始内容存档于2008-01-29). 
  9. ^ Dalton, Rex. Misconduct: The stars who fell to Earth. Nature. 2002, 420 (6917): 728–729. PMID 12490902. doi:10.1038/420728a. 
  10. ^ Oganessian, Yu. T.; et al. Element 118: results from the first 249Cf + 48Ca experiment. JINR. 2002 [2008-01-18]. (原始内容存档于2011-07-22). 
  11. ^ Oganessian, Yu. Ts.; Utyonkov, V.K.; Lobanov, Yu.V.; Abdullin, F.Sh.; Polyakov, A.N.; Sagaidak, R.N.; Shirokovsky, I.V.; Tsyganov, Yu.S.; Voinov, Yu.S.; Gulbekian, G.G.; Bogomolov, S.L.; B. N. Gikal, A. N. Mezentsev, S. Iliev; Subbotin, V.G.; Sukhov, A.M.; Subotic, K; Zagrebaev, V.I.; Vostokin, G.K.; Itkis, M. G.; Moody, K.J; Patin, J.B.; Shaughnessy, D.A.; Stoyer, M.A.; Stoyer, N.J.; Wilk, P.A.; Kenneally, J.M.; Landrum, J.H.; Wild, J.H.; and Lougheed, R.W. Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm+48Ca fusion reactions. Physical Review C. 2006-10-09, 74 (4): 044602 [2008-01-18]. Bibcode:2006PhRvC..74d4602O. doi:10.1103/PhysRevC.74.044602. (原始内容存档于2019-09-13). 
  12. ^ Y.T. Oganessian, J. Phys. G: Nucl. Part. Phys. 34, R165 (2007)
  13. ^ Oganessian, Yu. T.; et al.. Synthesis of the isotopes of elements 118 and 116 in the 249Cn and 245Cm + 48Ca fusion reactions. Physical Review C. 2006, 74 (4): 044602. doi:10.1103/PhysRevC.74.044602. 
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鿫的同位素
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