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Actinium
Actinium – Aktinium – Actinium – Actínio – アクチニウム – Актиний – 錒
Ac
Elementymology & Elements Multidict |
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89
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Actinium
Actinium – Aktinium – Actinium – Actínio – アクチニウム – Актиний – 錒
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Ac
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Multilingual dictionary
Indo-European
Actinium Latin— Germanic
Aktinium AfrikaansActinium Danish Aktinium German Actinium English Actinium Faroese Actinium Frisian (West) Aktín Icelandic Aktinium Luxembourgish Actinium Dutch Actinium Norwegian Aktinium Swedish — Italic
Actinio AragoneseActiniumu Aromanian Actiniu Asturian Actini Catalan Actínio Spanish Actinium French Atini Friulian Actinio Galician Attinio Italian Atíni Lombard Actini Occitan Actínio Portuguese Actiniu Romanian - Moldovan — Slavic
Актиний [Aktinij] BulgarianActinij[um] Bosnian Актыній [aktynij] Belarusian Aktinium Czech Aktinij Croatian Aktin Kashubian Актиниум [Aktinium] Macedonian Aktyn Polish Актиний [Aktinij] Russian Aktinium Slovak Aktinij Slovenian Актинијум [Aktinijum] Serbian Актиній [aktynij] Ukrainian — Baltic
Aktinis LithuanianAktīnijs Latvian Aktėnis Samogitian — Celtic
Aktiniom BretonActiniwm Welsh Achtainiam Gaelic (Irish) Aictiniam Gaelic (Scottish) Aghtinnium Gaelic (Manx) Actynyum Cornish — Other Indo-European
Ακτινιο [aktinio] GreekԱկտինիում [aktinium] Armenian Aktin Albanian — Indo-Iranian/Iranian
Aktinyûm KurdishАктиний [aktinij] Ossetian Актиний [Aktini'] Tajik — Indo-Iranian/Indo-Aryan
অ্যাক্টিনিয়াম [ayākṭiniẏāma] Bengaliآکتینیم [âktynym] Persian ઍક્ટિનિયમનો [ekṭiniyamano] Gujarati एक्टिनियम [ekṭiniyama] Hindi Finno-Ugric
Aktiinium EstonianAktinium Finnish Aktínium Hungarian Актиний [Aktinij] Komi Актиний [Aktinij] Mari Актини [aktini] Moksha Aktiinium Võro Altaic
Aktinium AzerbaijaniАктини [Aktini] Chuvash Актиний [aktinij] Kazakh Актиний [Aktinij] Kyrgyz Актини [aktini] Mongolian Aktinyum Turkish ئاكتىنىي ['aktiniy] Uyghur Aktiniy Uzbek Other (Europe)
Aktinioa Basqueაქტინიუმი [ak'tiniumi] Georgian Afro-Asiatic
اكتنيوم [aktīniyūm] Arabicאקטיניום [aktinium] Hebrew Aktinjum, ²Attinju Maltese Sino-Tibetan
 (錒) Hakkaアクチニウム [akuchiniumu] Japanese 악티늄 [agtinyum] Korean แอกทิเนียม [aekthiniam] Thai Actini Vietnamese 錒 [ei1 / a1] Chinese Malayo-Polynesian
Actinyo CebuanoAktinium Indonesian Actinium Māori Aktinium Malay Other Asiatic
ആക്റ്റിനിയം [ākṟṟiniyam] Malayalamஅக்டினியம் [akţiṉiyam] Tamil Africa
Atinu LingalaAktiniamo Sesotho Aktini Swahili North-America
Actinio NahuatlSouth-America
Aktinyu QuechuaCreole
Aktinimi Sranan TongoArtificial
Aktinio EsperantoNew names
Actinion Atomic ElementsUselessium Dorseyville |
History & Etymology
Actinium is a rare, extremely radioactive metal that glows in the dark with an eerie blue light. It was discovered twice. In 1899 André-Louis Debierne (1874-1949) found a radioactive substance which was separated from pitchblende with the rare earths and had chemical properties similar to those of Thorium. In 1900 he proposed the name Actinium, derived from Greek ακτις [aktis] = ray, sun beam (note).
Three years later, in 1902, Fritz Giesel (1852-1927) noted the presence of a new radioactive substance which was usually separated with Lanthanum and Cerium from the minerals. It possessed the property of giving out a radioactive emanation or gas, the activity of which died away in a few seconds. For this reason he called it the "emanating substance" and afterwards Emanium (note). Later was showed that it was identical with Actinium, and since Debierne was earlier, his chosen name took priority. The genetic relationships of the members of the Actinium decay series were determined during the next twenty years by radiochemical studies. The parent of the series, 235U, and the mass numbers of all its members were established by Arthur Dempster (1886-1950) in 1935, by mass spectrometric analysis.
Historical names of Actinium isotopes
Actinium in 1881 In 1881 Phipson named a metal Actinium. He thought that this metal accompanied Zinc (note).
Further reading
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