اوگانيسن
اوگانيسن (Oganesson) هڪ مصنوعي ڪيميائي عنصر آهي؛ ان جو نشان Og ۽ ايٽمي نمبر 118 آهي. ان کي پهريون ڀيرو سال 2002ع ۾ ماسڪو، روس جي ويجهو ڊبنا ۾ جوائنٽ انسٽيٽيوٽ فار نيوڪليئر ريسرچ (JINR) ۾ روسي ۽ آمريڪي سائنسدانن جي هڪ گڏيل ٽيم پاران تيار ڪيو ويو هو. ڊسمبر 2015ع ۾، ان کي بين الاقوامي سائنسي ادارن، پيور ۽ اپلائيڊ ڪيمسٽري جي بين الاقوامي يونين (IUPAC) ۽ پيور ۽ اپلائيڊ فزڪس جي بين الاقوامي يونين (IUPAP) جي گڏيل ورڪنگ پارٽي پاران چار نون عنصرن مان هڪ طور تسليم ڪيو ويو. ان جو باضابطه نالو 28 نومبر 2016ع تي رکيو ويو. اهو نالو ايٽمي طبيعيات دان يوري اوگانيسن جي اعزاز ۾ آهي، جنهن دوري جدول ۾ سڀ کان ڳري عنصرن جي دريافت ۾ اهم ڪردار ادا ڪيو.
تفصيل
[سنواريو]Oganesson is a synthetic chemical element; it has symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow, Russia, by a joint team of Russian and American scientists. In December 2015, it was recognized as one of four new elements by the Joint Working Party of the international scientific bodies IUPAC and IUPAP. It was formally named on 28 November 2016.[1][2] The name honors the nuclear physicist Yuri Oganessian, who played a leading role in the discovery of the heaviest elements in the periodic table.
Oganesson has the highest atomic number and highest atomic mass of all known elements. On the periodic table of the elements it is a p-block element, a member of group 18 and the last member of period 7. Its only known isotope, oganesson-294, is highly radioactive, with a half-life of 0.7 ms and, as of 2025[update] only five atoms have been successfully produced.[3] This has so far prevented any experimental studies of its chemistry. Because of relativistic effects, theoretical studies predict that it would be a solid at room temperature, and significantly reactive,[4][3] unlike the other members of group 18 (the noble gases).
پڻ ڏسو
[سنواريو]حوالا
[سنواريو]- ↑ "IUPAC Announces the Names of the Elements 113, 115, 117, and 118". IUPAC. 30 November 2016. https://iupac.org/iupac-announces-the-names-of-the-elements-113-115-117-and-118/.
- ↑ St. Fleur, Nicholas (1 December 2016). "Four New Names Officially Added to the Periodic Table of Elements". The New York Times. https://www.nytimes.com/2016/12/01/science/periodic-table-new-elements.html.
- ↑ 3.0 3.1 Smits, Odile R.; Mewes, Jan-Michael; Jerabek, Paul; Schwerdtfeger, Peter (2020). "Oganesson: A Noble Gas Element That Is Neither Noble Nor a Gas". Angewandte Chemie International Edition 59 (52): 23636–23640. doi:. PMID 32959952.
- ↑ حوالي جي چڪ: Invalid
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