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.
Quick Facts Hassium, Panagway ...
| Hassium |
|---|
108Hs |
|
|
| 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 |
|---|
| 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 |
|
| · r |
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