Stable isotope Hassium (Hs)

Isotope Atomic Mass Half-life Mode of Decay Nuclear Spin Nuclear Magnetic Moment
Hs-263 263.1287 1.00 second α to Sg-259 No data available No data available
Hs-264 264.1284 0.00008 seconds α to Sg-260; SF No data available No data available
Hs-265 265.13016 0.0018 seconds α to Sg-261; SF No data available No data available
Hs-266 266.1300 0.033 seconds α decay No data available No data available
Hs-267 267.1318 52.00 milliseconds α to Sg-263; SF No data available No data available
Hs-268 268.1321 0.40 seconds α decay No data available No data available
Hs-269 269.1341 9.30 seconds α to Sg-265 No data available No data available
Hs-277 277 11.00 minutes No data available No data available No data available

Properties of Hassium

Name Hassium
Symbol Hs
Atomic number 108
Atomic weight [277] (status unclear)
Standard state Presumably a solid at 298 °K
CAS Registry ID 54037-57-9
Group in periodic table 8
Group name None
Period in periodic table 7
Block in periodic table d-block
Color Unknown, but probably metallic and silvery white or grey in appearance
Classification Metallic
Melting point No data available
Boiling point No data available
Density of solid 28.6 g/cm3 (predicted)
Electron configuration [Rn]5f146d67s2