Periodic Table of Elements

W - Tungsten

Tungsten Menu

Nuclides / Isotopes

Nuc-
lide
Atomic
Mass
NNAbun
%
SpinHalf LifeDMDTBR
%
Decay
Energy
(MeV)
W158157.97484Syn0+0.9msαHf154 6.600
W159158.97285Syn 7.3msαHf155~99.56.440
 7.3msεTa159~0.058.700
W160159.96886Syn0+91msαHf156876.072
W161160.96787Syn 410msαHf157~825.920
 410msεTa161~188.100
W162161.96388Syn0+1.39sεTa162535.770
 1.39sαHf158475.674
W163162.96389Syn 2.75sεTa163597.700
 2.75sαHf159415.520
W164163.95990Syn0+6sεTa16497.45.000
 6sαHg1602.65.279
W165164.958391Syn 5.1sαHf161<0.25.030
 5.1sεTa165 7.010
W166165.95592Syn0+18.8sεTa16699.974.200
 18.8sαHf1620.044.857
W167166.95593Syn7/2-19.9sαHf163 4.670
 19.9sεTa167 6.200
W168167.95294Syn0+53sεTa168~1003.800
 53sαHf1640.00324.506
W169168.95295Syn5/2-76sεTa169 5.400
W170169.94996Syn0+2.42mεTa170 3.000
W171170.94997Syn5/2-2.38mεTa171 4.600
W172171.94798Syn0+6.6mεTa172 2.500
W173172.94899Syn5/2-7.6mεTa173 4.000
W174173.946100Syn0+31mεTa174 1.900
W175174.947101Syn1/2-35.2mεTa175 2.910
W176175.946102Syn0+2.5hεTa176 0.790
W177176.947103Syn1/2-135mεTa177 2.000
W178177.946104Syn0+21.6dεTa178 0.091
W179178.9471105Syn7/2-37.05mεTa179 1.060
meta state 0.222MeVSyn1/2-6.4mIT 99.720.222
 6.4mεTa1790.281.282
W180179.94671060.130+Stable 
meta state 1.529MeVSyn8-5.47msITW180 1.529
W181180.9482107Syn9/2+121.2dεTa181 0.188
W182181.948210826.30+Stable 
W183182.950210914.31/2->1.1E 17y    
meta state 0.309MeVSyn11/2+5.2sIT  0.309
W184183.950911030.670+>3E 17yαHf180  
W185184.9534111Syn3/2-75.1dβ-Re185 0.433
meta state 0.197MeVSyn11/2+1.67mIT  0.197
W186185.954411228.60+Stable 
W187186.9572113Syn3/2-23.72hβ-Re187 1.311
W188187.9585114Syn0+69.4dβ-Re188 0.349
W189188.962115Syn3/2-11.5mβ-Re189 2.500
W190189.963116Syn0+30mβ-Re190 1.270
NuclidePotential Parent Nuclides
W158Os162 (Syn)
W159Os163 (Syn) Re160 (Syn)
W160Os164 (Syn)
W161Os165 (Syn)
W162Os166 (Syn) Re162 (Syn)
W163Os167 (Syn) Re163 (Syn)
W164Os168 (Syn) Re164 (Syn)
W165Os169 (Syn) Re165 (Syn)
W166Os170 (Syn)
W167Os171 (Syn) Re167 (Syn)
W168Os172 (Syn) Re168 (Syn)
W169Os173 (Syn) Re169 (Syn)
W170Os174 (Syn) Re170 (Syn)
W171Re171 (Syn)
W172Re172 (Syn) Re172m (Syn)
W173Re173 (Syn)
W174Re174 (Syn)
W175Re175 (Syn)
W176Re176 (Syn)
W177Re177 (Syn)
W178Re178 (Syn)
W179Re179 (Syn)
meta state 0.222MeVNone known
W180Re180 (Syn) Ta180 (Natural) Ta180m (Syn) W180m (Syn)
meta state 1.529MeVNone known
W181Re181 (Syn)
W182Os186 (Natural) Re182 (Syn) Re182m (Syn) Ta182 (Syn)
W183Re183 (Syn) Ta183 (Syn)
meta state 0.309MeVNone known
W184Re184 (Syn) Re184m (Syn) Ta184 (Syn)
W185Ta185 (Syn)
meta state 0.197MeVNone known
W186Re186 (Syn) Ta186 (Syn)
W187None known
W188None known
W189None known
W190None 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)

Tungsten Menu

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.

Related Resources

Citing this page

If you need to cite this page, you can copy this text: