Periodic Table of Elements

Pt - Platinum

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Nuclides / Isotopes

Nuc-
lide
Atomic
Mass
NNAbun
%
SpinHalf LifeDMDTBR
%
Decay
Energy
(MeV)
Pt168167.98890Syn0+2msαOs164<=1006.991
Pt169168.98691Syn 5msαOs165<=1006.840
Pt170169.98292Syn0+6msαOs166 6.704
Pt171170.98193Syn 25msαOs167~996.610
 25msεIr171~18.600
Pt172171.977494Syn0+0.096sαOs168946.465
 0.096sεIr17266.200
Pt173172.97695Syn 342msαOs169846.350
 342msεIr173168.200
Pt174173.972896Syn0+0.9sαOs170836.184
 0.9sεIr174175.600
Pt175174.97297Syn 2.52sαOs171646.179
 2.52sεIr175367.600
Pt176175.96998Syn0+6.33sεIr176625.100
 6.33sαOs172385.886
Pt177176.96899Syn5/2-11sεIr17794.46.800
 11sαOs1735.65.644
Pt178177.966100Syn0+21.1sεIr17892.34.300
 21.1sαOs1747.75.574
Pt179178.965101Syn1/2-21.2sεIr17999.765.700
 21.2sαOs1750.245.280
Pt180179.963102Syn0+52sαOs176~0.35.257
 52sεIr180 3.700
Pt181180.963103Syn1/2-51sαOs177~0.065.130
 51sεIr181 5.200
Pt182181.961104Syn0+3mεIr18299.962.850
 3mαOs1780.044.943
Pt183182.962105Syn1/2-6.5mαOs179~0.00134.840
 6.5mεIr183 4.600
meta state 0.035MeVSyn7/2-43sαOs179<0.00044.875
 43sεIr183 4.635
 43sITPt183 0.035
Pt184183.96106Syn0+17.3mαOs180~04.590
 17.3mεIr184 2.300
meta state 1.839MeVSyn8-1.01msIT  1.839
Pt185184.961107Syn9/2+70.9mαOs181 4.540
 70.9mεIr185 3.800
meta state 0.103MeVSyn1/2-33mεIr185>983.903
 33mITPt185<20.103
 33mαOs181 4.643
Pt186185.9594108Syn0+2.2hαOs182~0.00014.324
 2.2hεIr186 1.380
Pt187186.961109Syn3/2-2.35hεIr187 3.110
Pt188187.9594110Syn0+10.2dαOs1840.000024.007
 10.2dεIr188 0.507
Pt189188.9608111Syn3/2-10.87hεIr189 1.971
Pt190189.95991120.010+6.5E 11yαOs186 3.249
Pt191190.9617113Syn3/2-2.802dεIr191 1.019
Pt192191.9611140.790+Stable 
Pt193192.963115Syn1/2-50yεIr193 0.057
meta state 0.149MeVSyn13/2+4.33dIT  0.150
Pt194193.962711632.90+Stable 
Pt195194.964811733.81/2-Stable 
meta state 0.259MeVSyn13/2+4.02dIT  0.259
Pt196195.964911825.30+Stable 
Pt197196.9673119Syn1/2-19.8915hβ-Au197 0.719
meta state 0.399MeVSyn13/2+95.41mIT 96.70.400
 95.41mβ-Au1973.31.119
Pt198197.96791207.20+Stable 
Pt199198.9706121Syn5/2-30.8mβ-Au199 1.702
meta state 0.424MeVSyn13/2+13.6sIT  0.424
Pt200199.9714122Syn0+12.5hβ-Au200 0.660
Pt201200.9745123Syn5/2-2.5mβ-Au201 2.660
Pt202 124Syn0+44h    
NuclidePotential Parent Nuclides
Pt168None known
Pt169None known
Pt170None known
Pt171Au172 (Syn) Hg175 (Syn)
Pt172Hg176 (Syn)
Pt173Hg177 (Syn)
Pt174Hg178 (Syn)
Pt175Au175 (Syn) Hg179 (Syn)
Pt176Au176 (Syn) Hg180 (Syn)
Pt177Au177 (Syn)
Pt178Au178 (Syn) Hg179 (Syn) Hg182 (Syn)
Pt179Au179 (Syn) Hg183 (Syn)
Pt180Au180 (Syn) Hg184 (Syn)
Pt181Au181 (Syn) Hg185 (Syn) Hg185m (Syn)
Pt182Au182 (Syn) Hg183 (Syn) Hg186 (Syn)
Pt183Au183 (Syn) Hg187 (Syn) Hg187m (Syn) Pt183m (Syn)
meta state 0.035MeVNone known
Pt184Au184 (Syn) Au184m (Syn) Hg188 (Syn)
meta state 1.839MeVNone known
Pt185Au185 (Syn) Au185m (Syn) Hg189 (Syn) Hg189m (Syn) Pt185m (Syn)
meta state 0.103MeVNone known
Pt186Au186 (Syn) Hg190 (Syn)
Pt187Au187 (Syn)
Pt188Au188 (Syn)
Pt189Au189 (Syn) Au189m (Syn)
Pt190Au190 (Syn)
Pt191Au191 (Syn)
Pt192Au192 (Syn) Ir192 (Syn) Ir192m (Syn)
Pt193Au193 (Syn) Au193m (Syn)
meta state 0.149MeVNone known
Pt194Au194 (Syn) Ir194 (Syn) Ir194m1 (Syn)
Pt195Au195 (Syn) Ir195 (Syn) Ir195m (Syn)
meta state 0.259MeVNone known
Pt196Au196 (Syn) Ir196 (Syn) Ir196m (Syn)
Pt197Ir197 (Syn) Ir197m (Syn)
meta state 0.399MeVNone known
Pt198Ir198 (Syn)
Pt199None known
meta state 0.424MeVNone known
Pt200None known
Pt201None known
Pt202None 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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