Discussion Overview
The discussion revolves around the potential for a third Mattauch violation involving the isotopes Cm-247 and Bk-247, specifically examining their decay modes, including beta decay and electron capture. Participants explore the implications of these decay processes and their relevance to established Mattauch violations.
Discussion Character
- Debate/contested
- Technical explanation
- Exploratory
Main Points Raised
- Some participants note that Cm-247 and Bk-247 are radioactive but primarily decay via alpha decay and fission, questioning if their lack of beta decay constitutes a third Mattauch violation.
- Others challenge the assertion that no beta decay or electron capture is possible, suggesting that non-observation does not imply non-existence, particularly for exotic nuclides.
- It is mentioned that Bk-247 decays by beta emission to Cm-247, although this process is expected to occur over millions of years.
- There is a discussion about the masses of Cm-247 and Bk-247, with participants confirming that the mass values include electrons and noting that Cm-247 is heavier.
- Some participants speculate on the possibility of Cm-247 undergoing beta decay, acknowledging that while it is not impossible, the likelihood is extremely low due to a tiny energy difference and a large spin difference.
Areas of Agreement / Disagreement
Participants express differing views on the decay modes of Cm-247 and Bk-247, with no consensus reached regarding the implications for Mattauch violations. The discussion remains unresolved regarding the potential for beta decay in Cm-247.
Contextual Notes
There are limitations related to the assumptions about decay processes and the implications of mass differences, as well as the uncertainty surrounding the existence of beta decay or electron capture in these isotopes.