Experiments on the synthesis of element 115 in the reaction ²⁴³Am(⁴⁸Ca,xn)^291−x115

Experiments on the synthesis of element 115 in the reaction 243Am(48Ca,xn)291−x115, Oganessian, Y. T., Utyonkov V., Lobanov Y. V., Abdullin F. S., Polyakov A., Shirokovsky I., Tsyganov Y. S., Gulbekian G., Bogomolov S., Mezentsev A., et al. , Physical Review C, 2/2004, Volume 69, Issue 2, (2004)

A New Chemical Element in the Periodic Table
Source: http://www.gsi.de/portrait/Pressemeldungen/10062009_e.html

Provisional Recommendations
Inorganic Chemistry Division

Recommendation for the Naming of Element of Atomic Number 110

Prepared for publication by J. Corish and G. M. Rosenblatt

A joint IUPAC-IUPAP Working Party confirms the discovery of element number 110 and this by the collaboration of Hofmann et al. from the Gesellschaft für Schwerionenforschung mbH (GSI) in Darmstadt, Germany.

In accord with IUPAC procedures, the discoverers have proposed a name and symbol for the element. The Inorganic Chemistry Division Committee now recommends this proposal for acceptance. The proposed name is darmstadtium with symbol Ds. This proposal lies within the long established tradition of naming an element after the place of its discovery.

Copernicium symbol, Cn, element 112

Darmstadtium: Ds, element 110

IUPAC have made a provisional recommendation about the name for element 111. To quote: "A joint IUPAC-IUPAP Working Party (JWP) has confirmed the discovery of element number 111 and this by the collaboration of Hofmann et al. from the Gesellschaft für Schwerionenforschung mbH (GSI) in Darmstadt, Germany. In accord with IUPAC procedures, the discoverers have proposed a name and symbol for the element. The Inorganic Chemistry Division Committee now recommends this proposal for acceptance. The proposed name is roentgenium with symbol Rg.

This proposal lies within the long established tradition of naming elements to honour famous scientists. Wilhelm Conrad Röntgen discovered X-rays in 1895."