Periodic Table of Elements

Dy - Dysprosium

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Nuclides / Isotopes

Nuc-
lide
Atomic
Mass
NNAbun
%
SpinHalf LifeDMDTBR
%
Decay
Energy
(MeV)
Dy140139.95474Syn0+     
Dy141140.95175Syn9/2-0.9sεTb141 9.300
 0.9sε + PGd140 8.800
Dy142141.94676Syn0+2.3sε + PGd141~8.0E -55.700
 2.3sεTb142 6.900
Dy143142.94477Syn1/2+4.1sεTb143 8.800
 4.1sε + PGd142 7.600
Dy144143.93978Syn0+9.1sεTb144 6.200
 9.1sε + PGd143 4.300
Dy145144.93779Syn1/2+10sεTb145 7.720
meta state 0.000MeVSyn11/2-13.6sεTb145 7.720
Dy146145.93380Syn0+29sεTb146 5.160
meta state 2.936MeVSyn10+150msIT  2.936
Dy147146.930981Syn1/2+40sε + PGd146>04.430
 40sεTb147 6.370
meta state 0.751MeVSyn11/2-55sεTb147657.121
 55sIT 350.751
Dy148147.927282Syn0+3.1mεTb148 2.678
Dy149148.927383Syn7/2-4.2mεTb149 3.812
meta state 2.661MeVSyn27/2-490msIT 99.32.661
 490msεTb1490.76.473
Dy150149.925684Syn0+7.17mεTb150641.794
 7.17mαGd146364.351
Dy151150.926285Syn7/2-17.9mεTb15194.42.870
 17.9mαGd1475.64.180
Dy152151.924786Syn0+2.38hεTb15299.90.600
 2.38hαGd1480.13.727
Dy153152.925887Syn7/2-6.4hεTb15399.992.170
 6.4hαGd1490.00943.559
Dy154153.924488Syn0+3.0E 6yαGd150 2.947
Dy155154.925789Syn3/2-9.9hεTb155 2.095
meta state 0.234MeVSyn11/2-6usIT  0.234
Dy156155.9243900.060+Stable 
Dy157156.925591Syn3/2-8.14hεTb157 1.341
meta state 0.199MeVSyn11/2-21.6msIT  0.199
Dy158157.9244920.10+Stable 
Dy159158.925793Syn3/2-144.4dεTb159 0.366
Dy160159.9252942.340+Stable 
Dy161160.92699518.95/2+Stable 
Dy162161.92689625.50+Stable 
Dy163162.92879724.95/2-Stable 
Dy164163.92929828.20+Stable 
Dy165164.931799Syn7/2+2.334hβ-Ho165 1.286
meta state 0.108MeVSyn1/2-1.257mIT 97.760.108
 1.257mβ-Ho1652.241.394
Dy166165.9328100Syn0+81.6hβ-Ho166 0.486
Dy167166.9356101Syn1/2-6.2mβ-Ho167 2.350
Dy168167.937102Syn0+8.7mβ-Ho168 1.600
Dy169168.94103Syn5/2-39sβ-Ho169 3.200
Dy170169.943104Syn      
Dy171170.946105Syn      
Dy172171.949106Syn0+     
Dy173172.953107Syn      
NuclidePotential Parent Nuclides
Dy140None known
Dy141None known
Dy142None known
Dy143None known
Dy144Ho144 (Syn)
Dy145Er146 (Syn)
meta state 0.000MeVNone known
Dy146Er147 (Syn) Er147m (Syn) Ho146 (Syn)
meta state 2.936MeVNone known
Dy147Ho147 (Syn)
meta state 0.751MeVNone known
Dy148Er149 (Syn) Er149m (Syn) Er152 (Syn) Ho148 (Syn) Ho148m (Syn)
Dy149Er153 (Syn) Ho149 (Syn) Ho149m (Syn)
meta state 2.661MeVNone known
Dy150Er154 (Syn) Er154m (Syn) Ho150 (Syn) Ho150m (Syn)
Dy151Er155 (Syn) Ho151 (Syn) Ho151m (Syn)
Dy152Er156 (Syn) Ho152 (Syn) Ho152m (Syn)
Dy153Er157 (Syn) Ho153 (Syn) Ho153m (Syn)
Dy154Ho154 (Syn) Ho154m (Syn) Tb154 (Syn) Tb154m1 (Syn)
Dy155Ho155 (Syn)
meta state 0.234MeVNone known
Dy156Ho156 (Syn) Tb156 (Syn)
Dy157Ho157 (Syn)
meta state 0.199MeVNone known
Dy158Ho158 (Syn) Ho158m (Syn) Ho158m1 (Syn) Tb158 (Syn) Tb158m (Syn)
Dy159Ho159 (Syn)
Dy160Ho160 (Syn) Ho160m (Syn) Tb160 (Syn)
Dy161Ho161 (Syn) Tb161 (Syn)
Dy162Ho162 (Syn) Ho162m (Syn) Tb162 (Syn)
Dy163Ho163 (Syn) Tb163 (Syn)
Dy164Ho164 (Syn) Tb164 (Syn)
Dy165Tb165 (Syn)
meta state 0.108MeVNone known
Dy166None known
Dy167None known
Dy168None known
Dy169None known
Dy170None known
Dy171None known
Dy172None known
Dy173None 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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