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An element naming controversy erupted between the two groups.
The International Union of Pure and Applied Chemistry ( IUPAC ) thus adopted unnilpentium ( Unp ) as a temporary, systematic element name.
Attempting to resolve the issue, in 1994, the IUPAC proposed the name joliotium ( Jl ), after the French physicist Frédéric Joliot-Curie, which was originally proposed by Soviet team for element 102, later named nobelium.
The two principal claimants still disagreed about the names of elements 104-106.
However, in 1997 they resolved the dispute and adopted the current name, dubnium ( Db ), after the Russian town of Dubna, the location of the Joint Institute for Nuclear Research.
It was argued by IUPAC that the Berkeley laboratory had already been recognized several times in the naming of elements ( i. e., berkelium, californium, americium ) and that the acceptance of the names rutherfordium and seaborgium for elements 104 and 106 should be offset by recognizing the Russian team's contributions to the discovery of elements 104, 105 and 106.

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