Yesterday I found out there is a nuclide, Beryllium 7, that has a nuclear decay where electron capture from the 2s (L shell) occurs. That's the shell used for chemical bonding in Be so the nuclear decay rate can be varied by changing the chemical environment. They decay rate can be increased by putting Be7 in a buckyball or decreased by ionizing it so that the 2s electrons are lost. That's fucking wild.
References: https://en.wikipedia.org/wiki/Beryllium-7#Decay_chains , Radioactivity gets fast-forward : https://www.nature.com/articles/news040913-24 , Be7 Decay Rate Papers : https://marvin.byu.edu/cgi-bin/res/Be7References?type=Decay
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