Hassium
108 Hs
Panagway
silvery (predicted) [ 1]
Kinatibuk-ang mga kinaiya
Ngalan, simbolo , kaiphan
hassium, Hs, 108
Paglitok
i [[Help:Pronunciation respelling key|Plantilya:Smallcaps all -ee-əm ]] [ 2]
Kategoriyang elemento
puthaw nga transisyon
Group , period , block
8 , 7 , d
Gibug-aton sa atomo
[269]
Kontorno sa elektron
[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
Pagkadiskobre
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
277 Hs
syn
2 s
SF
277m Hs ?
syn
~11 min[ 6]
SF
271 Hs
syn
~4 s
α
9.27,9.13
267 Sg
270 Hs
syn
3.6 s
α
9.02,8.88
266 Sg
269 Hs
syn
9.7 s
α
9.21,9.10,8.97
265 Sg
only isotopes with half-lives over 1 second are included here
· 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 .
↑ 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 .
↑ "Hassium" . Periodic Table of Videos . The University of Nottingham. Retrieved 19 October 2012 .
↑ 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 (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media . ISBN 1-4020-3555-1 . {{cite book }}
: CS1 maint: ref duplicates default (link )
↑ Investigation of group 8 metallocenes @ TASCA , C.E. Dullman
↑ Chemical Data. Hassium - Hs , Royal Chemical Society
↑ Oganessian, Yu. Ts.; Utyonkov, V. K.; Lobanov, Yu. V.; Abdullin, F. Sh.; Polyakov, A. N.; Shirokovsky, I. V.; Tsyganov, Yu. S.; Gulbekian, G. G.; Bogomolov, S. L. (2000). "Synthesis of superheavy nuclei in 48Ca+244Pu interactions" (PDF) . Physics of Atomic Nuclei . 63 (10): 1679–1687. Bibcode :2000PAN....63.1679O . doi :10.1134/1.1320137 .