Official names of the 4 new Periodic Table elements revealed

The names of the four new elements discovered last year, that completed the seventh row of the Periodic Table, have been officially announced by the IUPAC (The International Union of Pure and Applied Chemistry). The newly-discovered elements with the atomic numbers 113, 115, 117 and 118 have officially been named Nihonium (Nh), Moscovium (Mc), Tennessine (Ts) and Oganesson (Og).