Beryllium 7's nuclear decay rate can be manipulated chemically

[superkuh]

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. The 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