Chemistry Nexus

by WebElements: the periodic table on the web

Hard to know what to make of this as it is not my field. But here is a claim for element 122, or maybe 124, detection in thorium by a mass spectrometric method.1 The authors have claimed previously the observation of very heavy isotopes, for instance Rg isotopes in the mass spectra of natural gold.

Abstract:1 Evidence for the existence of a superheavy nucleus with atomic mass number A=292 and abundance (1-10) x 10-12 relative to 232Th has been found in a study of natural Th using inductively coupled plasma-sector field mass spectrometry. The measured mass matches the predictions for the mass of an isotope with atomic number Z=122 or a nearby element. Its estimated half-life of t1/2 <= 108 y suggests that a long-lived isomeric state exists in this isotope. The possibility that it might belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed.

References

1. MARINOV, A., I. RODUSHKIN, A. PAPE, Y. KASHIV, D. KOLB, R. BRANDT, R. V. GENTRY, H. W. MILLER, L. HALICZ, and I. SEGAL. “EXISTENCE OF LONG-LIVED ISOTOPES OF A SUPERHEAVY ELEMENT IN NATURAL Au“. Int. J. Mod. Phys. E. 2009, 18, 621, http://dx.doi.org/10.1142/S021830130901280X.

September 1st, 2008

Posted In: Chemistry, Nuclear chemistry

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