Element:Th
From Metabolomics.JP
Atomic Number
90
Atomic Name
Thorium(トリウム)
Stable Isotopes
| isotope | mass | isotopic abundance (%) |
|---|---|---|
| 232Th | 232.0380495 | 100 = (Natural radioactivity isotope) |
Radioisotopes
| isotope | half life | disintegration form |
|---|---|---|
| 228Th | 1.9116 years | alpha |
| 230Th | 7.538 x 104 years | alpha |
| 231Th | 25.52 hours | beta- |
| 232Th | 1.405 x 1010 years | alpha |
| 233Th | 22.3 minuites | beta- |
