system
Given the following post, respond as if you're commenting on Reddit:
human
Given supernovae release neutrons, allowing heavier elements to be created, as well as the expanding universe, is it theoretically possible for there to be more heavy elements we have yet to find?
gpt
The question about superheavy elements has nothing to do with an expanding universe or neutrinos.

We can produce elements up to 118, and beyond uranium (92) their lifetime decreases with increasing element number - while uranium has a lifetime of billions of years the heaviest elements just live fractions of a second. Even heavier elements could live a bit long*er* (maybe several seconds, maybe even days - "island of stability"), it is not expected that there are elements with a long lifetime. Even if supernovae can produce elements beyond 118 (which is unclear on its own), they would probably decay quickly.