超锕系元素(superactinides)是指原子序数在121(Ubu)与153(Upt)之间的超重元素,这些元素都仍未被发现或合成。[注 1]超锕系元素包括了第8周期g区f区元素,它们的5g和6f亚层被填入电子。超锕系元素在扩展元素周期表中位于锕系元素之下。诺贝尔化学奖得主格伦·西奥多·西博格是超锕系元素的提出者。

2008年时希伯来大学的Amnon Marinov曾被认为发现了第一个超锕系元素Ubb(原子序数为122)[1]。但之后的研究认为这一发现并不足信[2][3]

注释

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  1. ^ 目前已合成的最重的元素为鿫(Og),原子序为118,是第7周期元素中的最后一个。

参考文献

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  1. ^ Amnon Marinov, I. Rodushkin, D. Kolb, A. Pape, Y. Kashiv, R. Brandt, R.V. Gentry, H.W. Miller, Evidence for a long-lived superheavy nucleus with atomic mass number A=292 and atomic number Z≈122 in natural Th页面存档备份,存于互联网档案馆), e-Print: arXiv:0804.3869 [nucl-ex], Apr 2008, 14 pp.
  2. ^ R. C. Barber; J. R. De Laeter. Comment on "Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes". Phys. Rev. C. 2009, 79 (4): 049801. Bibcode:2009PhRvC..79d9801B. doi:10.1103/PhysRevC.79.049801. 
  3. ^ A. Marinov; I. Rodushkin; Y. Kashiv; L. Halicz; I. Segal; A. Pape; R. V. Gentry; H. W. Miller; D. Kolb; R. Brandt. Reply to "Comment on 'Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes'". Phys. Rev. C. 2009, 79 (4): 049802. Bibcode:2009PhRvC..79d9802M. doi:10.1103/PhysRevC.79.049802. 

参见

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