Hassium



108 meitnerium
Os
↑
Hs
↓
(Upo)
General
Number hassium, Hs, 108
transition metals
Block d
Appearance unknown, probably silvery
white or metallic gray
Standard atomic weight (278)  g·mol−1
osmium)
shell 2, 8, 18, 32, 32, 14, 2
Physical properties
Phase presumably a solid
Atomic properties
Crystal structure hexagonic
Oxidation states 8, 7, 6, 5, 4, 3, 2, 1, −1
CAS registry number 54037-57-9
Selected isotopes
Main article: Isotopes of hassium
iso NA half-life DM DE (MeV) DP
269Hs trace 14 s alpha
270Hs trace 22 s alpha
References

Hassium (osmium tetroxide.[1]

History

Hassium was Darmstadt. The name hassium was proposed by them, derived from the Latin name for the German state of Hessen where the institute is located.

There was an element name for this element. In 1994 a committee of IUPAC recommended that element 108 be named hahnium. The name hassium was adopted internationally in 1997.

Hassium-270

island of stability.[2]

References

  1. ^ "Chemistry of Hassium". Gesellschaft für Schwerionenforschung mbH (2002). Retrieved on 2007-01-31.
  2. ^ Mason Inman (2006-12-14). "A Nuclear Magic Trick". Physical Review Focus. Retrieved on 2006-12-25.
 
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