The short-lived stuff decays away, leaving the safe stuff. When the isotopes decay away, they become other elements that are easily chemically separated. Or so I'd guess.
The short-lived stuff decays away, leaving the safe stuff. When the isotopes decay away, they become other elements that are easily chemically separated. Or so I'd guess.
That's right. The xenon isotopes that are left are stable.
Another fission product that might be worth recovering is rhodium, although not being a gas the process would be more involved.