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Terbium (Tb) has 36 istopes, they are
136Tb, 137Tb, 138Tb, 139Tb, 140Tb, 141Tb, 142Tb, 143Tb, 144Tb, 145Tb, 146Tb, 147Tb, 148Tb, 149Tb, 150Tb, 151Tb, 152Tb, 153Tb, 154Tb, 155Tb, 156Tb, 157Tb, 158Tb, 159Tb, 160Tb, 161Tb, 162Tb, 163Tb, 164Tb, 165Tb, 166Tb, 167Tb, 168Tb, 169Tb, 170Tb, 171Tb | | | Of which 1 istope is stable: 159Tb | | | Common Unstable Isotopes of Terbium (Tb) are |
| Element | Mass | Symbol | Decay Type | Half Life |
|---|
| Terbium | 157 | 157Tb | Electron capture (e) | 71 years | | Terbium | 158 | 158Tb | Electron capture (e), Beta decay (ß-) | 180 years | | Terbium | 160 | 160Tb | | 72.3 days |
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