I love the periodic table and each time I revisit a site like Web Elements or PeriodicTable.com I discover something new. However, one secret of the elements not discussed there is the question of exactly how many of the elements are 'naturally-occurring'. It is often stated that there are 92 naturally occurring chemical elements. And…
ELI5: If there's only 90 or so naturally occurring elements, why are there so many more on the periodic table? : r/explainlikeimfive
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The rarest naturally-occurring element in the #Earth's crust is #astatine, occurring only as the decay product of various heavier #elem…
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