The Instrumentation Center

Hassium

Contributor:

We express our deep appreciation for the support extended by the German GSI, particularly Frau Katharina Becker, in providing the elemental cube. Yes, that is THE VERY Helmholtzzentrum für Schwerionenforschung located in Darmstadt (Darmstadtium). In this facility's accelerator the elements bohrium (1981), meitnerium (1982), hassium (1984), darmstadtium (1994), roentgenium (1994) and copernicium (1996) were first created.

The GSI has also confirmed the existence of elements such as nihonium (2012), flerovium (2009), moscovium (2012), livermorium (2010) and tennessine (2012).

For further exploration, we invite you to visit an interactive Periodic Table in Connecticut, featuring additional elemental cubes for GSI-discovered elements and much more. Access the interactive Periodic Table at this link: https://chemistry.uconn.edu/periodic-table/.

About the Display:

You are about to learn some historical facts about the 108th element in the periodic table. The name "Hassium" originated from the German state of "Hesse" where it was first made. It has been found that the most stable isotope, hassium-277 has a half life of around 12 minutes. Even if the natural occurance of the element was hypothesized, it has never been discovered. Laboratory technique that produced hassium is cold fusion. This technique was first tested at the Joint Institute for Nuclear Research (JINR) in Dubna, Soviet Union and in 1983 JINR claimed that 108th element had been synthesized. However, Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Hesse, West Germany in 1984 synthesized and claimed the element 108 which was accepted by the International Union of Pure and Applied Chemistry and International Union of Pure and Applied Physics in 1993 stating report from Darmstadt was conclusive. 2 Euro coin in the display is a special edition for the State Hessen in Germany that symbolizes the story of "Hassium".

 

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