radioactivity

[lakshmi]

is radioactivity decay reversible or irreversible?

[Gonzolo]

The probability of the reverse effect is unbelievably small, such as with glass shreds becoming a window.

[OddThoughts]

Excellent analogy Gonzolo

[pmb_phy]

is radioactivity decay reversible or irreversible?In a sense, yes. Nucei can be bombarded with alpha rays. The nuclei will then absorb some of the alpha particles and changes its Z number.

Accelerators often to this to produce special material, E.g. a material with a large percentage of an isotope which nomally isn't there.

Pete

[Clausius2]

I think there is no real chemical or nuclear reaction espontaneously reversible.