On Thu, Feb 4, 2016 at 2:47 PM, <[email protected]> wrote: 32Si has a half life of only 100 years, so there isn't any in nature. >
According to Wikipedia, it's a trace element. I wonder whether it arises from cosmic rays and how much of it there is in relation to stable isotopes of silicon. E.g., in the case of 36Cl, which is also trace, I think it's present at 1e-13 the level of the amount of stable chlorine. If whatever produces 32Si is a common enough process, it might exist in significant amounts in equilibrium. Eric
