3 ms·
http://en.wikipedia.org/wiki/Nuclear_isomer http://en.wikipedia.org/wiki/Nuclear_isomer
by cozzyd 12y ago
http://en.wikipedia.org/wiki/Nuclear_isomer http://en.wikipedia.org/wiki/Nuclear_isomer
- Retric 12y agoConsidering 10 ^ -9 seconds is considered meta-stable for a nuclear isomer that's also a seemingly pointless exercise. However, IMO this is interesting comparison simply because of the one edge case that's seemly stable. http://en.wikipedia.org/wiki/Isotopes_of_tantalum http://en.wikipedia.org/wiki/Isotopes_of_tantalum lasts for ~10^15 years so we might also find a vary heavy but stable 'particle'.