New elements in the Periodic Table


The periodic table has increased in number and now has four new elements. Nihonium, Moscovium, Tennessine and Oganesson, with the atomic mass numbers 113, 115, 117 and 118, respectively, these are the new chemical elements.

These names were proposed in January and presented last June of this year but only since the first day of December are officially part of the seventh row of the periodic table. The four new elements were added to the periodic table by Japanese, Russian and American scientists.

These four new elements were agreed by the International Union of Pure and Applied Chemistry (IUPAC) and approved by the international scientific community. According to the rules of the organism, the names of the elements discovered may be mythological concepts or characters, minerals or similar substances, geographical sites or regions, a property of the element or even a scientist.

The Japanese Research Institute, Riken, welcomed the approval of the Nihonium element, which refers to the word Nihon, meaning “Japan” and has a symbol in the table (Nh). The existence of Nihonium, the first element to be found in Asia, had already been demonstrated in three circumstances between 2004 and 2012 by Kosuke Morita, a professor at Kyushu University in southwest Japan.

In addition to the Nihonium and Moscovium (Mc), a reference to Moscow and whose paternity corresponds to Russian and American researchers, the International Union of Pure and Applied Chemistry (IUPAC) also approved the denomination of two other elements.

And the elements are, the Tennessine, in honor of the Tennessee research institutes in the United States, with the number 117 in the table and with the symbol (Ts), and Oganesson (Og), number 118, referring to the nuclear physicist Russian Yuri Oganesián. These elements were discovered by laboratories in Russia and the United States, according to a statement from IUPAC.

The periodic table of elements, also known as the Mendeleyev Table, in honor of the Russian Dmitri Mendeleyev, who created the first version of this table in 1869, brings together the chemical elements classified according to their composition and their properties.