Ah, stupid me, obviously you have a nuclear reactor, what would you do else with loads on nuclear waste from the accelerators.

Best of luck for the electricity bills

most don’t, most will just give you poisoning from ingestion (or plain old indigestion), or in off case cancers, but that is not “kill” enough

probably spend about billion dollars to make some particle accelerators, or ask some existing lab to let you move all your stuff into there lab, since ognassen would not last for even a second (all nearby elements are basically same in this, ognassen being most stable), so you would have to move your collection to their lab to have a “complete” set

if he had astatine, more like 20 mins

Back in my day, we had 20 amino acids and we were happy.

But seriously, what are the other 2, I am presuming we are counting seleno-cystine? and i checked for the other one I had completely forgotten - https://en.wikipedia.org/wiki/Pyrrolysine

that is like final boss level difficulty