Flerov, Georgy

Dubnium - the atomic number is 105 and the chemical symbol is Db. The name derives from the location of the Russian research center, the Joint Institute for Nuclear Research lab in Dubna , Russia. The first synthesis of this element is jointly credited to the American scientific team at the University of California in Berkeley, California imder Albert Ghiorso and the Russian scientific team at the JINR (Joint Institute for Nuclear Reactions) lab in Dubna, Russia, imder Georgi N. Flerov in 1970. The longest half-life associated with this unstable element is 34 second Db. 

Ruthetfotdlum (Unnilquadium) Rf or Uuq 1964 (Dubna, Russia) Berkeley, California Georgy Flerov, Ivo Zvara (both Russian) Albert Ghiorso (American) 342... 

A research team at the Joint Institute for Nuclear Research at Dubna, Russia, led by Russian physicist Georgy Nikolaevich Flerov, produces rutherfordium ( 104). 

In 1940, Georgi Flerov and Konstantin Petrzhak showed that natural uranium fissions spontaneously, albeit with an extremely low rate (Flerov and Petrzhak 1940 Petrzhak and Flerov 1940). As spontaneous fission was subsequently studied in other nuclei, it was found that its rate increases steeply with atomic number. This decay mode may thus finally terminate the periodic table of elements. 

Soviet scientist Georgy Flerov and his colleagues at the Joint Institute for Nuclear Research in Dubna, USSR, announce the discovery of the element dubnium. American... 

Rutherfordium 1964/1969 Georgy Flerov and colleagues at the JINR (USSR) Albert Ghiorso and colleagues at the LBNL (U.S.) ... 

---