Yeah, the radioactive element comment is more statement on how our products are slowly decaying. But if I was to choose one with a half-life similar to the life

Yeah, the radioactive element comment is more statement on how our products are slowly decaying. But if I was to choose one with a half-life similar to the lifetime of the products I've worked on I'd go with the isotope: Sodium-22 with a half-life of 2.602 years. Edit: Going by https://en.wikipedia.org/wiki/List_of_radioactive_isotopes_by_half-life https://en.wikipedia.org/wiki/List_of_radioactive_isotopes_b..., it seems that most of the halflives fall in the 10^(n where n <= 6) seconds category which is smaller than a human lifetime.