Four elements earn permanent seats on the periodic table

U.S., Russian and Japanese scientists credited with official discoveries

FEWER U’S  The official discovery of elements 113, 115, 117 and 118 means that all 118 elements in the periodic table’s first seven rows have been found on Earth or produced in the lab. The four new elements will soon get names replacing the temporary “Uu” placeholder names.

E. Otwell

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