105. Dubnium - Elementymology & Elements Multidict

Elementymology & Elements Multidict

eXTReMe Tracker
This site comprises 120 pages of text and photos, one for each element, and several pages for access. – For captions or explanatory texts move your mouse over illustrations, links etc.

105
Dubnium
Dubnium – Dubnium – Dubnium – Dubnio – ドブニウム – Дубний, ²Нильсборий – 金杜
Db
Multilingual dictionary

Indo-European
Dubnium Latin

— Germanic
Dubnium Afrikaans
Dubnium Danish
Dubnium German
Dubnium English
Dubnium Faroese
Dubnium Frisian (West)
Dubnín Icelandic
Dubnium Luxembourgish
Dubnium Dutch
Dubnium Norwegian
Dubnium Swedish

— Italic
Dubnio Aragonese
Dubniumu Aromanian
Dubniu Asturian
Dubni Catalan
Dubnio Spanish
Dubnium French
Dubni Friulian
Dubnio Galician
Dubnio Italian
Dübni Lombard
Dubni Occitan
Dúbnio Portuguese
Dubniu Romanian - Moldovan

— Slavic
Дубний [Dubnij] Bulgarian
Dubnij[um] Bosnian
Дубній [dubnij] Belarusian
Dubnium Czech
Dubnij Croatian
Dubn Kashubian
Дубниум [Dubnium] Macedonian
Dubn Polish
Дубний, ²Нильсборий [Dubnij, ²Nil'sborij] Russian
Dubnium Slovak
Dubnij Slovenian
Дубнијум [Dubnijum] Serbian
Дубній [dubnij] Ukrainian

— Baltic
Dubnis Lithuanian
Dubnijs Latvian
Dobnis Samogitian

— Celtic
Dubniwm Welsh
Dúibniam Gaelic (Irish)
Duibniam Gaelic (Scottish)
Hahnium Gaelic (Manx)
Dubnyum Cornish

— Other Indo-European
Ντούμπνιο [doubnio] Greek
Դուբնիում [dubnium] Armenian
Dubnium[i] Albanian

— Indo-Iranian/Iranian
Dubniyûm Kurdish
Нильсборий [nil'sborij] Ossetian
Дубний [Dubni'] Tajik

— Indo-Iranian/Indo-Aryan
ডুবনিয়াম [ḍubaniẏāma] Bengali
دابنیم [dabnym] Persian
ડૂબ્નિયમનો [ḍūbniyamano] Gujarati
डब्नियम [ḍabniyama] Hindi

Finno-Ugric
Dubnium Estonian
Dubnium Finnish
Dubnium Hungarian
Дубний [Dubnij] Komi
Дубний [Dubnij] Mari
Нилсбори [nilsbori] Moksha
Dubnium Võro

Altaic
Dubinium Azerbaijani
Дубни [Dubni] Chuvash
Нильсборий [nil'sborij] Kazakh
Нильсборий [Nil'sborij] Kyrgyz
Дубни [Dubni] Mongolian
Dubniyum Turkish
Dubniy Uzbek

Other (Europe)
Dubnio Basque
დუბნიუმი [dubniumi] Georgian

Afro-Asiatic
دبنيوم [dūbniyūm] Arabic
דובניום [dubnium] Hebrew
Dubnju Maltese

Sino-Tibetan
-- Hakka
ドブニウム [dobuniumu] Japanese
더브늄 [deobeunyum] Korean
ดุบเนียม [dubniam] Thai
Dubni Vietnamese
金杜 [du4 / do6] Chinese

Malayo-Polynesian
Dubnyo Cebuano
Dubnium Indonesian
Dubnium Māori
Hahnium Malay

Other Asiatic
ഡബ്നിയം [ḍabniyam] Malayalam
டப்னியம் [ţapṉiyam] Tamil

Africa
Dubenu Lingala
Dubniamo Sesotho
Dubni Swahili

North-America
Dubnio Nahuatl

South-America
Dubniyu Quechua

Creole
Dubnimi Sranan Tongo

Artificial
Dubnio Esperanto

New names
Dubnion Atomic Elements
Aprilium Dorseyville
memory peg

Artificial radioactive element
melting point -- °C; -- °F
boiling point -- °C; -- °F
density -- g/cc; -- pounds/cubic foot
1968 .. (G.N. Flerov) and co-workers, Dubna, Russia
1970 Albert Ghiorso and co-workers, Berkeley, Calif., USA
Dubna group named it Nielsbohrium, the Berkeley group Hahnium, in 1997 named Dubnium after (Dubna), town in Moscow region

History & Etymology

First preparation by Russian and American teams:

  • 1968 by Г.Н. Флеров (Georgy Nikolaevich Flerov), V.A. Druin, A.G. Demin, Ю.В. Лобанов (Yu.V. Lobanov), Nikolai Konstantinovich Skobelev, G.N. Akap'ev, B.V. Fefilov, I.V. Kolesov, K.A. Gavrilov, Ю. П. Харитонов (Yu.P. Kharitonov), and L.P. Chelnokov at the Объединенный Институт Ядерных Исследований (ОИЯИ) - Joint Institute for Nuclear Research (JINR) at Дубна (Dubna) by bombardment of Americium with Neon ions and named Nielsbohrium after Niels Bohr (cf. Bohrium).
  • 1970 by Albert Ghiorso, M. Nurmia, K. Eskola, J. Harris, and P. Eskola at the Berkeley Laboraty of the University of California by bombardment of Californium with Nitrogen ions and named Hahnium after Otto Hahn (1879-1968) (cf. Hassium).

The systematic IUPAC name was Unnilpentium (Unp). In 1994 IUPAC proposed the name Joliotium (Jl) for element #105 "to recognize the French scientist F. Joliot-Curie who contributed greatly to the development of nuclear physics and chemistry, and who shared the Nobel prize in 1935 with Mme. M. Curie", and for element #104 Dubnium "to recognize the distinguished contributions to chemistry and modern nuclear physics of the international scientific centre at Dubna near Moscow." The American Chemical Society kept the name Hahnium (Ha), as proposed by Ghiorso and co-workers. In 1997, at the final elements christening during the International Union of Pure and Applied Chemistry (IUPAC) Council meeting in Geneva, element #104 was named Rutherfordium and element #105 got the name and symbol Dubnium (Db) (see "Naming the transfermium elements" on the Ununoctium page).

Variant names of elements 104-108
No.syst. IUPACIUPAC 1997proposals
104Unq UnnilquadiumRf RutherfordiumDb Dubnium (1)
Ku Kurchatovium (3)
105Unp UnnilpentiumDb DubniumJo Joliotium (1)
Ha Hahnium (2)
Ns Nielsbohrium (3)
106Unh UnnilhexiumSg SeaborgiumRf Rutherfordium (1)
107Uns UnnilseptiumBh Bohrium (1)Ns Nielsbohrium (2, 4)
108Uno UnniloctiumHs Hassium (4)Ha Hahnium (1)
(1) IUPAC 1994; (2) ACS 1994; (3) (JINR); (4) GSI 1992
See "Naming the transfermium elements" on the Ununoctium page

Дубна (Dubna)
Дубна (Dubna), a small town north of Moscow region (127 km from Moscow) where the Moscow Canal flows from the Volga River. Population: 60,951 (2002 Census). The town is well-known in Russia and abroad as a city of science.

The decision to build a proton accelerator for nuclear research was taken by the Soviet government in 1946. An impracticable place where the current town is situated was chosen due to remoteness from Moscow and the presence of the Ivankovo power plant nearby. The scientific leader was Igor Kurchatov. The general supervisor of the project including construction of a settlement, a road and a railway connecting it to Moscow (largely involving penal labour of Gulag inmates) was the NKVD chief Lavrentiy Beria. After three years of intensive work, the accelerator was commissioned on December 13, 1949.

The town of Dubna was officially inaugurated in 1956, together with the Объединенный Институт Ядерных Исследований (ОИЯИ) (Joint Institute for Nuclear Research, JINR), which has developed into a large international research laboratory involved mainly in particle physics, heavy ion physics, synthesis of transuranium elements, and radiobiology. In 1960 a town of Ivankovo situated on the opposite (left) bank of the Volga was merged into Dubna.

Outstanding physicists of the 20th century including Nikolay Bogolyubov, Georgy Flyorov, Vladimir Veksler, Bruno Pontecorvo used to work at the institute. A number of elementary particles and heavy nuclei (including the 118th element) were discovered and investigated there. In recognition of that, in 1997 this chemical element Dubnium was named after the town. In 1964 Dubna hosted the prestigious International Conference on High Energy Physics (note).

Further reading
  • Earl K. Hyde & Glenn T. Seaborg, Transurane : Teil A 1, I: Die Elemente. Gmelins Handbuch der anorganische Chemie, Ergänzungswerk zur 8. Aufl.; Band 7a. Weinheim/Bergstrasse: Chemie, 1973.

Sources Index of Persons Index of Alleged Elements