Just How Many Naturally Occurring Elements are there?
Por un escritor de hombre misterioso
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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…
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