Hassyo

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Hassium
108Hs
Os

Hs

(Uhn)
bohriumhassiummeitnerium
Appearance
silvery (predicted)[1]
General properties
Name, simbolo, kaiphan hassium, Hs, 108
Pronunciation Plantilya:IPAc-en
Plantilya:Respell[2]
Element category puthaw nga transisyon
Group, period, block 87, d
Standard atomic weight [269]
Electron configuration [Rn] 5f14 6d6 7s2
(predicted)[3]
2, 8, 18, 32, 32, 14, 2 (predicted)
Electron shells of hassium (2, 8, 18, 32, 32, 14, 2 (predicted))
History
Discovery Gesellschaft für Schwerionenforschung (1984)
Physical properties
Phase magahi (predicted)
Density (near r.t.) 41 (predicted)[3] g·cm−3
Atomic properties
Oxidation states 8, 6, 5, 4, 3, 2 (predicted)[1][3][4]
(only bolded oxidation states are known experimentally)
Ionization energies
(more)
1st: 733.3 (estimated)[3] kJ·mol−1
2nd: 1756.0 (estimated)[3] kJ·mol−1
3rd: 2827.0 (estimated)[3] kJ·mol−1
Atomic radius 126 (estimated)[3] pm
Covalent radius 134 (estimated)[5] pm
Miscellanea
CAS registry number 54037-57-9
Most stable isotopes
Main article: Isotopes of hassium
iso NA half-life DM DE (MeV) DP
277Hs syn 2 s SF
277mHs ? syn ~11 min[6] SF
271Hs syn ~4 s α 9.27,9.13 267Sg
270Hs syn 3.6 s α 9.02,8.88 266Sg
269Hs syn 9.7 s α 9.21,9.10,8.97 265Sg
only isotopes with half-lives over 1 second are included here
t  h  u
· r

Ang hassyo (Iningles hassium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Hs ug kaiphan nga atomik 108. Ang hassyo mao ang puthaw nga transisyon.

Ang mga gi basihan niini[usba | edit source]

  1. 1.0 1.1 Emsley, John (2011). Nature's Building Blocks: An A-Z Guide to the Elements (New ed.). New York, NY: Oxford University Press. p. 215–7. ISBN 978-0-19-960563-7. 
  2. Hassium. Periodic Table of Videos. The University of Nottingham. Retrieved on 19 October 2012.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Haire, Richard G. (2006). "Transactinides and the future elements". in Morss; Edelstein, Norman M.; Fuger, Jean. The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 1-4020-3555-1. 
  4. Investigation of group 8 metallocenes @ TASCA, C.E. Dullman
  5. Chemical Data. Hassium - Hs, Royal Chemical Society
  6. Oganessian, Yu. Ts.; Utyonkov, V. K.; Lobanov, Yu. V.; Abdullin, F. Sh.; Polyakov, A. N.; Shirokovsky, I. V.; Tsyganov, Yu. S.; Gulbekian, G. G.; et al. (2000). "Synthesis of superheavy nuclei in 48Ca+244Pu interactions". Physics of Atomic Nuclei 63 (10): 1679–1687. doi:10.1134/1.1320137. Bibcode2000PAN....63.1679O, http://www.springerlink.com/content/f80mt423204570p8/fulltext.pdf. 


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