Journal Archive
- Volume 56
- Issue 4
- Oct 2012
- Page 271
Back to 2012, Volume 56, Issue 4
The Discoverers of the Isotopes of the Platinum Group of Elements: An Update
New discoveries in 2011 increase total number of known isotopes
- John W. Arblaster
- Wombourne, West Midlands, UK Email: jwarblaster@yahoo.co.uk
- Platinum Metals Rev.,
- 2012,
- 56,
- (4),
- 271
- doi:
- 10.1595/147106712x654899
Since the previous update on new isotopes of the platinum group of elements (1), further isotopes have been discovered and reported by Kurcewicz et al. (2) in 2011. These are: 202Os, 203Os, 204Ir, 205Ir and 206Pt to 209Pt. The discovery of the isotope 201Os was also claimed but this was previously identified by Kurtukian-Nieto (3) in 2007. All of these isotopes are particle stable (resistant to proton and neutron decay) and are likely to be β– emitters. These discoveries bring the total number of known isotopes for the platinum group of elements as shown in Table I.
References
- J. W. Arblaster, Platinum Metals Rev., 2011, 55, (4), 251 LINK http://www.platinummetalsreview.com/article/55/4/251-262/
- J. Kurcewicz, F. Farinon, H. Geissel, S. Pietri, C. Nociforo, A. Prochazka, H. Weick, J. S. Winfield, A. Estradé, P. R. P. Allegro, A. Bail, G. Bélier, J. Benlliure, G. Benzoni, M. Bunce, M. Bowry, R. Caballero-Folch, I. Dillmann, A. Evdokimov, J. Gerl, A. Gottardo, E. Gregor, R. Janik, A. Kelić-Heil, R. Knöbel, T. Kubo, Yu. A. Litvinov, E. Merchan, I. Mukha, F. Naqvi, M. Pfützner, M. Pomorski, Zs. Podolyák, P. H. Regan, B. Riese, M. V. Ricciardi, C. Scheidenberger, B. Sitar, P. Spiller, J. Stadlmann, P. Strmen, B. Sun, I. Szarka, J. Taïeb, S. Terashima, J. J. Valiente-Dobón, M. Winkler and Ph. Woods, eprint arXiv:1112.0521v1 [nucl-ex], 2nd December, 2011 LINK http://arxiv.org/abs/1112.0521v1
- T. Kurtukian-Nieto, ‘Production and β Decay Half-Lives of Heavy Neutron-Rich Nuclei Approaching the Stellar Nucleosynthesis R-Process Path Around A = 195’, PhD Thesis, University of Santiago De Compostela, Santiago De Compostela, Spain, 2007 LINK http://fpsalmon.usc.es/PhDthesis/PhD_teresa.pdf
The Author
John W. Arblaster is interested in the history of science and the evaluation of the thermodynamic and crystallographic properties of the elements. Now retired, he previously worked as a metallurgical chemist in a number of commercial laboratories and was involved in the analysis of a wide range of ferrous and non-ferrous alloys.
