Darmštátium

Darmštátium
(darmstadtium)
meitnérium ← darmštátium → röntgénium
Pt
↑
Ds
 
110
Periodická tabuľka
7. perióda, 10. skupina, blok d
transurány
Atómové vlastnosti
Atómová hmotnosť (281) g·mol−1
Elektrónová konfigurácia [Rn] 5f14 6d8 7s2 (odhad)
Iné
Reg. číslo CAS 54083-77-1
Izotop(y) (vybrané)
Izotop Výskyt t1/2 Rr Er (MeV) Pr
 267Ds synt. ~10(8) µs α ?
 269Ds synt. 230(110) µs. α 11,11 265Hs
 270Ds synt. ~200 μs α 12,15 266Hs
 271Ds synt. 210(170) ms. α 10,71 267Hs
 273Ds synt. ~240 μs α 11,14 269Hs
 279Ds synt. ~186 ms α 9,70 275Hs
 281Ds synt. ~14 s α 8,77 277Hs
 Commons ponúka multimediálny obsah na tému darmštátium.

Darmštátium[1] (lat. darmstadtium) je chemický prvok v Periodickej tabuľke prvkov, ktorý má značku Ds a protónové číslo 110. Je to 18. transurán a 7. transaktinoid, silno rádioaktívny kovový chemický prvok, pripravovaný umelo v cyklotróne alebo urýchľovači častíc.

Najstabilnejší izotop darmštátia, 281Ds, má polčas rozpadu 14 sekúnd.[2] Na základe toho tento prvok zatiaľ nebol izolovaný v dostatočne veľkom množstve, aby bolo možné určiť všetky jeho fyzikálne vlastnosti. Pri svojej polohe v periodickej tabuľke by mohol pripomínať platinu.

Referencie

  1. ↑ SZABÓ, Erik; DRÁBIK, Milan; GALAMBOŠ, Michal; LEVICKÁ, Jana. Systematizácia zdomácňovania názvov nových chemických prvkov. ChemZi (Bratislava: Slovenská chemická spoločnosť), 12 2016, čís. 2, s. 8 – 10. Dostupné online [cit. 2017-06-21]. ISSN 1336-7242. Archivované 2017-07-17 z originálu.
  2. ↑ KONDEV, F.G.; WANG, M.; HUANG, W.J.. The NUBASE2020 evaluation of nuclear physics properties *. Chinese Physics C, 2021-03-01, roč. 45, čís. 3, s. 030001. Dostupné online [cit. 2023-12-24]. ISSN 1674-1137. DOI: 10.1088/1674-1137/abddae.

Iné projekty

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Periodická tabuľka chemických prvkov
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 H   He
2 Li Be   B C N O F Ne
3 Na Mg   Al Si P S Cl Ar
4 K Ca Sc   Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
5 Rb Sr Y   Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
6 Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
7 Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
Alkalické kovy Kovy alk. zemín Lantanoidy Aktinoidy Prechodné prvky Kovy Polokovy Nekovy Halogény Vzácne plyny
 

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