By Brian Mastroianni December 2, 2016 / 1:36 PM EST / CBS News It’s now time to say hello, officially, to the four new additions to the Periodic Table of Elements.

Names for elements 113, 115, 117, and 118 finalized by IUPAC Nihonium, moscovium, tennessine, and oganesson complete the seventh row of the periodic table by Jyllian Kemsley November 30, 2016 2 ...

Kosuke Morita, who led a group of researchers that discovered element 113, speaks at a press conference at in Tokyo on June 9. The name nihonium stems from the fact that element 113 was discovered ...

An American team led by the aforementioned Glenn Seaborg named Element 101 mendelevium, after Dmitri Mendeleev, the scientist generally given credit for developing the periodic table.