Properties | More Info | Isotopes | Spectra
Compounds | Reactions | Production
Atomic: M.A.C. | Reference
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Isotopes of Thorium
Notes
Thorium has no stable isotopes.
Notable Isotopes show graph
228Th [138 neutrons]
Abundance: Synthetic
Half life: 1.9116 years [ Alpha Decay ]
Decay Energy: 5.520 MeV
Decays to 224Ra.
229Th [139 neutrons]
Abundance: Synthetic
Half life: 7340 years [ Alpha Decay ]
Decay Energy: 5.168 MeV
Decays to 225Ra.
230Th [140 neutrons]
Abundance: Synthetic
Half life: 75380 years [ Alpha Decay ]
Decay Energy: 4.770 MeV
Decays to 226Ra.
232Th [142 neutrons]
Abundance: 100%
Half life: 1.4505 x 1010years [ Alpha Decay ]
Decay Energy: 4.083 MeV
Decays to 228Ra.