Accessible Requires Authentication Published by Oldenbourg Wissenschaftsverlag April 16, 2010

Indication for a volatile element 114

Robert Eichler, N. V. Aksenov, Yu. V. Albin, A. V. Belozerov, G. A. Bozhikov, V. I. Chepigin, S. N. Dmitriev, R. Dressler, H. W. Gäggeler, V. A. Gorshkov, G.S. Henderson and et al.
From the journal rca - Radiochimica Acta

Abstract

Recently, the chemical investigation of element 112 revealed a highly volatile, noble metallic behaviour, as expected for the last group 12 member of the periodic table. The observed volatility and chemical inertness were ascribed to the growing influence of relativistic effects on the chemical properties of the heaviest elements with increasing nuclear charge. Here, we report for the first time on gas phase chemical experiments aiming at a determination of element 114 properties. This element was investigated using its isotopes 287114 and 288114 produced in the nuclear fusion reactions of 48Ca with 242Pu and 244Pu, respectively. Identification of three atoms of element 114 in thermochromatography experiments and their deposition pattern on a gold surface indicates that this element is at least as volatile as simultaneously investigated elements Hg, At, and element 112. This behaviour is rather unexpected for a typical metal of group 14.


* Correspondence address: Paul Scherrer Institut, Labor für Radio- und Umweltchemie, 5232 Villigen, Schweiz,

Published Online: 2010-04-16
Published in Print: 2010-03

© by Oldenbourg Wissenschaftsverlag, München, Germany