isotope,.6 seconds, long enough to perform chemical studies, another obstacle is the need to increase the rate of production of meitnerium isotopes and allow experiments. Archived from the original on February 26, 2008. A.; Thörle-Popiesch,.; Tinschert,.; Trautmann,.; Uusitalo,.; Yeremin,. "Thermatographic investigation of Rh and 107Rh with different carrier gases" (PDF). "Discovery of the transfermium elements.