Elementymology & Elements Multidict |
Protactinium
Protactinium – Protaktinium – Protactinium – Protactínio – プロトアクチニウム – Протактиний – 鏷
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Multilingual dictionary
Indo-European
Protactinium Latin Germanic
Protaktinium AfrikaansProtactinium Danish Protaktinium German Protactinium English Protaktinium Faroese Protactinium Frisian (West) Protaktín Icelandic Protaktinium Luxembourgish Protactinium Dutch Protactinium Norwegian Protaktinium Swedish Italic
Protactinio AragoneseProtactiniumu Aromanian Protactiniu Asturian Protactini Catalan Protactínio Spanish Protactinium French Protoatini Friulian Protactinio Galician Protoattinio Italian Protuatíni Lombard Protactini Occitan Protacnídio Portuguese Protactiniu Romanian - Moldovan Slavic
Протактиний [Protaktinij] BulgarianProtactinijum, ²Protaktinij Bosnian Пратактыній [prataktynij] Belarusian Protaktinium Czech Protaktinij Croatian Protaktin Kashubian Протактиниум [Protaktinium] Macedonian Proaktyn Polish Протактиний [Protaktinij] Russian Protaktinium Slovak Protaktinij Slovenian Протоактинијум [Protoaktinijum] Serbian Протактиній [protaktynij] Ukrainian Baltic
Protaktinis LithuanianProtaktīnijs Latvian Pruotaktėnis Samogitian Celtic
Protaktiniom BretonProtoactiniwm Welsh Prótachtainiam Gaelic (Irish) Pròtactainiam Gaelic (Scottish) Protaghtinnium Gaelic (Manx) Protoactynyum Cornish Other Indo-European
Πρωτακτινιο [prōtaktinio] GreekՊրոտակտինիում [protaktinium] Armenian Protaktin, ²Protactiniumi Albanian Indo-Iranian/Iranian
Proaktinyûm KurdishПротактиний [protaktinij] Ossetian Протактиний [Protaktini'] Tajik Indo-Iranian/Indo-Aryan
প্রোটেক্টিনিয়াম [proṭekṭiniẏāma] Bengaliپروتاکتینیم [prwtaktynym] Persian પ્રોટૅક્ટિનિયમનો [proṭekṭiniyamano] Gujarati प्रोटैक्टीनियम [proṭaikṭiniyama] Hindi Finno-Ugric
Protaktiinium EstonianProtaktinium Finnish Protaktínium Hungarian Протактиний [Protaktinij] Komi Протактиний [Protaktinij] Mari Протактини [protaktini] Moksha Protaktiinium Võro Altaic
Protaktinium AzerbaijaniПротактини [Protaktini] Chuvash Протактиний [protaktinij] Kazakh Протактиний [Protaktinij] Kyrgyz Протактини [protaktini] Mongolian Protaktinyum Turkish پروتاكتىنىي [protaktiniy] Uyghur Protaktiniy Uzbek Other (Europe)
Protaktinioa Basqueპროტაქტინიუმი [protak'tiniumi] Georgian Afro-Asiatic
بروتكتنيوم [brūtaktīniyūm] Arabicפרוטקטיניום [protaktinium] Hebrew Protaktinjum, ²Protoattinju Maltese Sino-Tibetan
Phù (鏷) Hakkaプロトアクチニウム [purotoakuchiniumu] Japanese 프로트악티늄 or 프로탁티늄 [peurotagtinyum] Korean โพรแทกทิเนียม [phrōthaekthiniam] Thai Protactini Vietnamese 鏷 [pu2 / pok8] Chinese Malayo-Polynesian
Protactinyo CebuanoProtaktinium Indonesian Protactinium Māori Protaktinium Malay Other Asiatic
പ്രൊട്ടക്റ്റിനിയം [proṭṭakṟṟiniyam] Malayalamபுரொட்டக்டினியம் [puroţţakţiṉiyam] Tamil Africa
Potinu? LingalaProaktiniamo Sesotho Protaktini Swahili North-America
Protactinio NahuatlSouth-America
Protaktinyu QuechuaCreole
Protaktinimi Sranan TongoArtificial
Protaktinio EsperantoNew names
Proteon Atomic ElementsGohrjanium Dorseyville |
History & Etymology
Element #91 was predicted by Д.И. Менделеев (D.I. Mendeleyev) in 1871 and named by him Eka-Tantalum (note) . The first isotope of Protactinium to be discovered was 234Pam (also called Uranium X2), an ephemeral member of the natural decay series of 238U. This isotope was identified by Kasimir Fajans (1887-1975) and Otto H. Göhring of Karlsruhe in 1913, who called it Brevium (= brief), because of its short half-life (note). In 1918, two research scientist teams isolated almost simultaneously a more stable isotope (231Pa), of the decay series of 235U. These teams were led by Otto Hahn and Lise Meitner (note), and by Frederick Soddy and John A. Cranston (note). The first team named this isotope Protoactinium, from the Greek πρωτος [prōtos] = first, since its place in the uranium-actinium decay series it is the first before Actinium (it falls apart in Actinium (227Ac) and an α-particle).
Historical names of Protactinium Isotopes
John and Gordon Marks suggested in 1994 the name Meitnium (Mt), after Lise Meitner, according to them the discoverer of this element and of the many peculiar properties (especially radioactivity) of the actinides. The Marks brothers found the old names ugly and confusing. They offered alternative names that are equivalent contemporary (at the time and place of discovery) metaphors, both more euphonious and more memorable (note).
Further reading
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