Artificial radioactive element properties unknown	memory peg
	1981 Gottfried Münzenberg and co-workers, Darmstadt, Germany
	Niels Bohr (1885-1962)

First prepared in 1981 by Gottfried Münzenberg, Sigurd Hofmann, Fritz Peter Heßberger, Willibrord Reisdorf, Karl-Heinz Schmidt, J.R.H. Schneider, W.F.W. Schneider, Peter Armbruster, Christoph-Clemens Sahm, and B. Thuma at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany.

The systematic IUPAC name was Unnilseptium (Uns). Although the discoverers and the American Chemical Society proposed the name Nielsbohrium (Ns), the nomenclature commission of the International Union of Pure and Applied Chemistry (IUPAC) chose for Bohrium (Bh), which was more conform the names of the other elements named after individuals." (cf. Dubnium). Did they not realize that Bohrium is almost identical with the Latin name of Boron, Borium? This name was ratified by the IUPAC Council meeting in Geneva during August 1997 (see "Naming the transfermium elements" on the Mendelevium page).

Niels Henrik David Bohr (1885-1962), Danish physicist. After work with Ernest Rutherford at Manchester, he became professor at Copenhagen in 1916. He founded the Institute of Theoretical Physics in Copenhagen, of which he became director in 1920. He fled from the Nazis in World War II and took part in work on the atomic bomb in the USA. In 1952 he helped to set up CERN, the European nuclear research organisation, in Geneva.
He was awarded the Nobel Prize for Physics in 1922 "for his services in the investigation of the structure of atoms and of the radiation emanating from them". See his biography on the Nobel Prize website.

Elements discovered at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany, heavy ion research center funded by the Federal Government of Germany and the state of Hesse.

They were called the "correct" eka-metals, in contradiction to the false transuranic elements (#93-97), described by Otto Hahn, Lise Meitner and Fritz Strassmann in 1934-38.

• 107 Bohrium (Eka-Rhenium)
• 108 Hassium (Eka-Osmium)
• 109 Meitnerium (Eka-Iridium)
• Element 110 (Eka-Platin)
• Element 111 (Eka-Gold)
• Element 112

• 107 - Nielsbohrium, nach dem Vater des Atommodells
• 108 - Hassium, womit wir unser schönes Hessenland gewürdigt sehen
• 109 - Meitnerium, nach Lise Meitner

Variant names of elements 104-108
No.	syst. IUPAC	IUPAC 1997	proposals
104	Unq Unnilquadium	Rf Rutherfordium	Db Dubnium (1) Ku Kurchatovium (3)
105	Unp Unnilpentium	Db Dubnium	Jo Joliotium (1) Ha Hahnium (2) Ns Nielsbohrium (3)
106	Unh Unnilhexium	Sg Seaborgium	Rf Rutherfordium (1)
107	Uns Unnilseptium	Bh Bohrium (1)	Ns Nielsbohrium (2, 4)
108	Uno Unniloctium	Hs Hassium (4)	Ha Hahnium (1)
(1) IUPAC 1994; (2) ACS 1994; (3) ОИЯИ (JINR); (4) GSI 1992 See "Naming the transfermium elements" on the Mendelevium page

Further reading:

• Glenn T. Seaborg, Transuranium elements: A Half Century. Remarks at ACS Symposium to Commemorate the 50th Anniversary of Transuranium Elements, Washington D.C., August 27, 1990. (PDF-file available on-line).
• Laudationes zur Verleihung des Otto-Hahn-Preises 1996 der Stadt Frankfurt am Main an Dr. Sigurd Hofmann und Professor Dr. Gottfried Münzenberg (on-line).