How many of the 118 known elements in the periodic table could we permanently delete without any ill effect on our lives?

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Japanese scientists have made a new (nu?) periodic table organized by the number of protons in the nucleus instead of the element’s number of electrons. They call it the Nucletouch table, and where ...

It is amazing to think that everything around us is made up from just 90 building blocks – the naturally occurring chemical elements. Dmitri Mendeleev put the 63 of these known at the time into order ...

As the 150th anniversary of the formulation of the Periodic Table of Chemical Elements looms, a Michigan State University professor probes the table's limits in a recent Nature Physics Perspective.

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue explores how the periodic table of elements took shape. Learn how the periodic table developed ...

For now, they're known by working names, like ununseptium and ununtrium — two of the four new chemical elements whose discovery has been officially verified. The elements with atomic numbers 113, 115, ...