ډوبنيوم

Dubnium,₁₀₅Db
عمومي خواص
Pronunciation	/ˈduːbniəm/; DOOB-nee-əm
Dubnium پهدوراني جدولکې
rutherfordium←dubnium→seaborgium	‍
اټومي شمیره(Z)	105
گروپ,پیریود	group 5,period 7
بلاک	d-block
Element category	transition metal
Mass number	268 (most stable isotope)
Electron configuration	[Rn] 5f146d37s2
Electrons per shell	2, 8, 18, 32, 32, 11, 2
فزیکي خواص
حالت(atSTP)	جامد(predicted)
Densitynearr.t.	29.3 g/cm3(predicted)
اټومي خواص
Oxidation states	5,(4), (3)(parenthesized oxidation states are predictions)
Ionization energies	1st: 656.1 kJ/mol; 2nd: 1546.7 kJ/mol; 3rd: 2378.4 kJ/mol; (more)(all but first estimated);
Atomic radius	empirical: 139pm(estimated)
Covalent radius	149 pm(estimated)
Miscellanea
Crystal structure	body-centered cubic(bcc)(predicted) Body-centered cubic crystal structure for dubnium
CAS Number	53850-35-4
History
Naming	afterDubna,Moscow Oblast,Russia, site of theJoint Institute for Nuclear Research
Discovery	independently by theUniversity of Californiaand the Joint Institute for Nuclear Research(1970)
Mainisotopes of dubnium
	view•talk•edit\|references\|in Wikidata

ډوبنيوم(پهانگرېزي:Dubnium) لهکیمیاوي عناصروڅخه یو دی چې پهتناوبي جدولکې دDbسمبول او ۱۰۵اتمي شمېرېپه وسیله ښودل شوی دی.

مشخصات

↑^۱٫۰^۱٫۱^۱٫۲^۱٫۳^۱٫۴Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (سمونګران).The Chemistry of the Actinide and Transactinide Elements(چاپ 3rd). Dordrecht, The Netherlands:Springer Science+Business Media.د کتاب نړيواله کره شمېره 1-4020-3555-1.منځګړی|CitationClass=له پامه غورځول شوی (لارښود)
↑^۲٫۰^۲٫۱Östlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals".Physical Review B.84(11).Bibcode:2011PhRvB..84k3104O.doi:10.1103/PhysRevB.84.113104.منځګړی|CitationClass=له پامه غورځول شوی (لارښود)
↑^۳٫۰^۳٫۱Fricke, Burkhard (1975)."Superheavy elements: a prediction of their chemical and physical properties".Recent Impact of Physics on Inorganic Chemistry.21:89–144.doi:10.1007/BFb0116498.لاسرسينېټه ۰۴ اکتوبر ۲۰۱۳.منځګړی|CitationClass=له پامه غورځول شوی (لارښود)
↑Chemical Data. Dubnium - Db,Royal Chemical Society

دا ليکنه نابشپړه ده، تاسې ددې ليکنې پهبشپړولوکې د ويکيپېډيا سره مرسته کولای شئ.