Four new elements confirmed! From the International Union of Pure and Applied Chemistry:
Discovery and Assignment of Elements with Atomic Numbers 113, 115, 117 and 118
IUPAC announces the verification of the discoveries of four new chemical elements: The 7th period of the periodic table of elements is complete.
The fourth IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements has reviewed the relevant literature for elements 113, 115, 117, and 118 and has determined that the claims for discovery of these elements have been fulfilled, in accordance with the criteria for the discovery of elements of the IUPAP/IUPAC Transfermium Working Group (TWG) 1991 discovery criteria. These elements complete the 7th row of the periodic table of the elements, and the discoverers from Japan, Russia and the USA will now be invited to suggest permanent names and symbols. The new elements and assigned priorities of discovery are as follows.
This is big. Not only four new elements being discovered but filling the seventh row of the periodic table.
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