From 112 elements, periodic table has now gone upto 118 elements on 1st December 2016. This day marked the birth of four new elements in the periodic table having atomic numbers 113,115,117 and 118.
We welcome these four new elements namely: Nihonium, Moscovium, Tennessine and Oganesson. These elements have now expanded the range of chemistry. These elements were first synthesized way back between 2002 and 2010 but it wasn't until December 2015 that the IUPAC officially recognized the discoveries.
These elements are super-heavy and highly-reactive. These elements will occupy their places in periodic table's seventh row. These four elements have got their names from the following scientists:- Nihonium (113) is named by Japanese researchers after the Japanese word Nihon, means Japan its symbol is Nh. Moscovium (115) (Mc) and Tennessine (117) (TS) have named after Moscow and Tennessee respectively by the scientist from Russia and USA. Oganesson (118) symbol Og is named after Yuri Ogsnessian, an element hunter by the Russian team.
One more interesting fact about these super heavy and unstable elements is that they exist only in laboratories for few seconds before they breakdown.