Week 3 - Roentgenium

Roentgenium was first discovered during a cold fusion experiement using Ni (nickel) ion and Bi (bismuth) ion, in 1994. The experiment was carried out in Germany by Peter Armbruster, Gottfiren Munzberg and their team. There was insufficient evidence to classify the existing three atoms as a new element. The team repeated their experiment in 2000 and in 2003 the atoms were officially recognized as a new element with atomic mass 111. The element was named after a well-known scientist from the beginning of the 20th centruy, Wilhelm Conrad Roentgen. There is little know about the reactivity and properties of element 111, as it is sometimes called. It is believed to be more noble than gold.