system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do many radioactive isotopes eventually decay into lead, and does this have anything to do with how lead blocks radiation?
gpt
It's simply because radioisotopes will decay until they hit the first stable isotope, which for most (but not all) of the possible decay chains, that's one of several isotopes of lead. It's merely a coincidence that lead also happens to be good at attenuating radiation.