Periodic Table of Elements

Hs - Hassium

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Nuclides / Isotopes

Nuc-
lide
Atomic
Mass
NNAbun
%
SpinHalf LifeDMDTBR
%
Decay
Energy
(MeV)
Hs263263.129155Syn7/2+<1sαSg259  
Hs264264.128156Syn0+~0.85msSF <1.510.8
 ~0.85msαSg260 10.8
Hs265265.13157Syn 0.9msαSg261~10010.82
 0.9msSF <=910.82
Hs266266.13158Syn0+     
Hs267267.132159Syn9/2+26msα   
Hs268268.132160Syn0+     
Hs269269.134161Syn3/2+9sα   
NuclidePotential Parent Nuclides
Hs263None known
Hs264None known
Hs265None known
Hs266None known
Hs267None known
Hs268None known
Hs269None known

Key:

  • NN = Number of Neutrons
  • Abun % = Natural Abundance (as a percentage)
  • Syn = Synthetic Nuclide (does not occur in nature)
  • DM = Decay Mode
    α = Alpha emission
    β- = Beta emission
    β- β- = Double beta decay
    β+ = Positron emission
    ε = Electron Capture
    IT = Isomeric Transition
    N = Neutron emission
    P = Proton emission
    SF = Spontaneous Fission
  • DT = Decays To
  • BR % = Branch Ratio (as a percentage)

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References

A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

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