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Periodic Table of Elements

Hg - Mercury

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Nuclides / Isotopes

Nuc-
lide		Atomic
Mass		NNAbun
%		SpinHalf LifeDMDTBR
%		Decay
Energy
(MeV)
Hg174 94Syn0+     
Hg175174.99195Syn 20msαPt171 7.040
Hg176175.987496Syn0+18msαPt172~1006.925
Hg177176.98697Syn 0.13sαPt173856.740
 0.13s εAu177158.500
Hg178177.982598Syn0+266msαPt174~706.578
 266ms εAu178~306.100
Hg179178.98299Syn 1.09sαPt175~536.431
 1.09s εAu179~478.000
 1.09s ε + PPt178~0.157.700
Hg180179.978100Syn0+2.8s εAu180515.500
 2.8sαPt176496.258
Hg181180.978101Syn1/2-3.6s    
Hg182181.975102Syn0+10.83s εAu18284.84.800
 10.83sαPt17815.25.998
Hg183182.975103Syn1/2-9.4s εAu18374.56.500
 9.4sαPt17925.56.039
 9.4s ε + PPt1820.000565.100
Hg184183.972104Syn0+30.9s εAu18498.894.100
 30.9sαPt1801.115.662
Hg185184.972105Syn1/2-49.1s εAu185945.800
 49.1sαPt18165.778
meta state 0.099MeVSyn13/2+21.6sIT 540.099
 21.6s εAu185465.899
 21.6sαPt181~0.035.877
Hg186185.969106Syn0+1.38m εAu18699.983.300
 1.38mαPt1820.025.206
Hg187186.97107Syn13/2+2.4mαPt183>0.00015.080
 2.4m εAu187 4.900
meta state 0.000MeVSyn3/2-1.9mαPt183>0.00025.080
 1.9m εAu187 4.900
Hg188187.968108Syn0+3.25mαPt1840.000034.710
 3.25m εAu188 2.300
Hg189188.968109Syn3/2-7.6mαPt185<3.0E -54.400
 7.6m εAu189 3.950
meta state 0.000MeVSyn13/2+8.6mαPt185<3.0E -54.400
 8.6m εAu189 3.950
Hg190189.966110Syn0+20mαPt186<5.0E -53.950
 20m εAu190 1.470
Hg191190.9671111Syn3/2-49m εAu191 3.180
meta state 0.000MeVSyn13/2+50.8m εAu191 3.180
Hg192191.966112Syn0+4.85h εAu192 0.700
Hg193192.9666113Syn3/2-3.8h εAu193 2.340
meta state 0.140MeVSyn13/2+11.8h εAu19392.92.481
 11.8hIT 7.10.141
Hg194193.9654114Syn0+444y εAu194 0.040
Hg195194.9666115Syn1/2-9.9h εAu195 1.510
meta state 0.176MeVSyn13/2+41.6hITAu195m54.20.176
 41.6h εAu19545.81.686
Hg196195.96581160.150+Stable 
Hg197196.9672117Syn1/2-64.14h εAu197 0.600
meta state 0.298MeVSyn13/2+23.8hIT 91.40.299
 23.8h εAu1978.60.899
Hg198197.96681189.970+Stable 
Hg199198.968311916.871/2-Stable 
meta state 0.532MeVSyn13/2+42.6mIT  0.532
Hg200199.968312023.10+Stable 
Hg201200.970312113.183/2-Stable 
Hg202201.970612229.860+Stable 
Hg203202.9729123Syn5/2-46.612d β-Tl203 0.492
Hg204202.97351246.870+Stable 
Hg205204.9761125Syn1/2-5.2m β-Tl205 1.531
Hg206205.9775126Syn0+8.15m β-Tl206 1.308
Hg207206.983127Syn9/2+2.9m β-Tl207 4.780
Hg208 128Syn0+42m    
NuclidePotential Parent Nuclides
Hg174None known
Hg175None known
Hg176None known
Hg177Pb181 (Syn)
Hg178Pb182 (Syn)
Hg179Pb183 (Syn)
Hg180Pb184 (Syn) Tl180 (Syn)
Hg181Pb185 (Syn) Tl181 (Syn)
Hg182Pb186 (Syn) Tl182 (Syn)
Hg183Pb187 (Syn) Pb187m (Syn) Tl183 (Syn)
Hg184Pb188 (Syn) Tl184 (Syn)
Hg185Pb189 (Syn) Tl185 (Syn)
meta state 0.099MeVNone known
Hg186Pb190 (Syn) Tl186 (Syn)
Hg187Pb191 (Syn) Pb191m (Syn) Tl187 (Syn) Tl187m (Syn)
meta state 0.000MeVNone known
Hg188Pb192 (Syn) Tl188 (Syn) Tl188m (Syn)
Hg189Tl189 (Syn) Tl189m (Syn)
meta state 0.000MeVNone known
Hg190Pb194 (Syn) Tl190 (Syn) Tl190m (Syn)
Hg191Tl191 (Syn) Tl191m (Syn)
meta state 0.000MeVNone known
Hg192Pb196 (Syn) Tl192 (Syn) Tl192m (Syn)
Hg193Tl193 (Syn) Tl193m (Syn)
meta state 0.140MeVNone known
Hg194Tl194 (Syn) Tl194m (Syn)
Hg195Tl195 (Syn)
meta state 0.176MeVNone known
Hg196Au196 (Syn) Tl196 (Syn) Tl196m (Syn)
Hg197Tl197 (Syn)
meta state 0.298MeVNone known
Hg198Au198 (Syn) Pb202 (Syn) Tl198 (Syn) Tl198m (Syn)
Hg199Au199 (Syn) Tl199 (Syn)
meta state 0.532MeVNone known
Hg200Au200 (Syn) Au200m (Syn) Pb204 (Natural) Tl200 (Syn)
Hg201Au201 (Syn) Tl201 (Syn)
Hg202Au202 (Syn) Tl202 (Syn)
Hg203Au203 (Syn)
Hg204Au204 (Syn) Tl204 (Syn)
Hg205None known
Hg206Pb210 (Syn)
Hg207None known
Hg208None 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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