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| 203Tl | Half-life | Boson, 81p 122n |  |  | Stable | Spin 1/2 Parity 1 | 
 This isotope is stable and thus has no decay products, so instead we show decay chains that lead down to it.
 | | Atomic Weight | 202.97234422 |  | Abundance | 29.524% |  | Mass Excess | -25.761192MeV |  | Binding Energy | 7.886052MeV |  | Magnetic Moment | 1.62225787 μ |  | Quadrupole Moment | N/A | 
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