Isotopes of ununseptium
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Ununseptium (Uus) has not yet been synthesized; all data are theoretical. It has no stable isotopes. A standard atomic mass cannot be given.
[edit] Table
| nuclide symbol |
Z(p) | N(n) | isotopic mass (u) |
half-life | nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|
| excitation energy | |||||||
| 291Uus | 117 | 174 | 291.20656(95)# | ||||
| 292Uus | 117 | 175 | 292.20755(101)# | ||||
[edit] Notes
- Values marked # are not purely derived from experimental data, but at least partly from systematic trends.
- Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values from Ame2003 denote one standard deviation. Values from IUPAC are expanded uncertainties.
[edit] References
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic Weights of the Elements: Review 2000 (IUPAC Technical Report). Pure Appl. Chem., Vol. 75, No. 6, pp. 683-800, (2003).
| Isotopes of ununhexium | Isotopes of ununseptium | Isotopes of ununoctium |
| Index to isotope pages · Table of nuclides | ||
