Eli5: Is it possible that there are elements on other planets, we don’t have on earth and haven’t discover yet?
In: Chemistry
Only the unstable, high atomic number, radioactive ones. If and only if there are conditions where they last more than a millisecond. Because an element is associated with the number of protons in the nucleus of its atom, aka atomic number, and we already have all the single- and double-digit niches filled.
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