Periodic Table of Elements

Be - Beryllium

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Nuclides / Isotopes

Nuc-
lide
Atomic
Mass
NNAbun
%
SpinHalf LifeDMDTBR
%
Decay
Energy
(MeV)
Be55.041Syn      
Be66.01972Syn0+92keVPHe4 1.372
Be77.01693Syn3/2-53.12dεLi7 0.862
Be88.00534Syn0+6.8eV    
Be99.01225100.3/2-Stable 
Be1010.01356Syn0+1.51E 6yβ-B10 0.556
Be1111.02177Syn1/2+13.81sβ- + αLi73.12.841
 13.81sβ-B11 11.506
Be1212.02698Syn0+23.6msβ- + NB11<18.337
 23.6msβ-B12 11.708
Be1313.0369Syn5/2+, 1/2+0.9MeVNBe12 2.010
Be1414.04310Syn0+4.35msβ- + NB138115.250
 4.35msβ-B14 16.220
NuclidePotential Parent Nuclides
Be5None known
Be6B7 (Syn) C8 (Syn)
Be7None known
Be8B8 (Syn) B9 (Syn) C9 (Syn) Li8 (Syn) Li9 (Syn)
Be9Li9 (Syn)
Be10Li11 (Syn)
Be11Li11 (Syn)
Be12Be13 (Syn)
Be13None known
Be14None 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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