Hassium [SEP] named after
Hassium
Hassium is a chemical element with the symbol Hs and atomic number 108. It is not known to occur in nature and has only been made in laboratories in minuscule quantities. It is highly radioactive: the most stable known isotope, Hs, has a half-life of approximately 16 seconds.
The first attempt to synthesise element 108 was made at the Joint Institute for Nuclear Research in Dubna, Moscow Oblast, Russian SFSR, Soviet Union, in 1978. Another attempt was made at the venue in 1983
one of only eight settlements with elements named after them (the others being Ytterby in Sweden (four elements); Stockholm in Sweden (holmium); Strontian in Scotland; Copenhagen in Denmark (whose Latin name gives hafnium); Paris (whose Latin name gives lutetium); Berkeley, California; and Dubna in Russia). Various other elements, including meitnerium (atomic number: 109) (1982), hassium (atomic number: 108) (1984), roentgenium (atomic number: 111) (1994)