Who discovered dubnium?

Answer 1

Dubnium was discovered in 1968 by a team from Dubna, Russia:

Gheorghi Nikolaevici Flerov, V.A. Druin, A.G. Demin, Iu.V. Lobanov, Nikolai Cons-tantinovici Skobelev, G.N. Akapiev, B.V. Fefilov, I.V. Kolesov, K.A. Gavrilov, Iu.P. Haritonov, L.P. Şelnokov .

The nuclear reaction used was:

24395Am + 2210Ne → 260105Db + 5 n

Answer 2

Dubnium (Db, atom number 105) was first reported by Russian scientists in 1968 at the Joint Institute for Nuclear Research in Dubna, Soviet Union (now in Russia).

Discussion:

In the 1960s, tiny amounts of dubnium were produced in laboratories in the former Soviet Union and inCalifornia, not allowing to see the element with unaided eye. The priority of the discovery and therefore the naming of the element was disputed between Soviet and American scientists, and it was not until 1997 that International Union of Pure and Applied Chemistry (IUPAC) established Soviet team priority and a compromising name of dubnium as the official name for the element.

Answer 3

Two teams are credited by IUPAC for the discovery of dubnium:

Gheorghi Nikolaevici Flerov, V.A. Druin, A.G. Demin, Iu.V. Lobanov, Nikolai Constantinovici Skobelev, G.N. Akapiev, B.V. Fefilov, I.V. Kolesov, K.A. Gavrilov, Iu.P. Haritonov, L.P. Shelnokov and Albert Ghiorso, M. Nurmia, K. Eskola, J. Harris, P. Eskola