If someone were foolish and/or brave enough to build a device to focus the alpha decay products from a radioactive sample, then point it at their tongue through their open mouth, would it taste sour, assuming there were sufficient helium nuclei?
On one hand, I can imagine the eletro-negativity of the alpha decay products being high enough that it would act as an acid and trigger the sour-response in the taste bud.
On the other hand, I can imagine it not tasting like anything for the two following reasons:
The helium nucleus might quickly gain electrons and become inert before it had a chance to trigger a neural response
The helium nucleus might cause enough damage to the taste buds to render them ineffective
I know this is a bit of a silly question, but what would alpha-decay taste like?