Nihonium is a synthetic chemical element with the symbol Nh and atomic number 113. It is a transactinide element in the p-block. It is a member of period 7 and group 13. It was first reported to have been created in 2003 by a Russian–American collaboration at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia, and in 2004 by a team of Japanese scientists at Riken in Wako, Japan.
In 2015, the IUPAC/IUPAP Joint Working Party recognised the element and assigned the priority of the discovery and naming rights for the element to Riken, as it judged that they had demonstrated that they had observed element 113 before the JINR team did so. The Riken team suggested the name nihonium in 2016, which was approved in the same year.
Characteristics of Nihonium
- It possesses properties similar to that of indium, boron, and aluminium and appears to be much denser than thallium which also consists of similar properties of that of Nihonium.
- It is a synthetic element with an atomic number 113 and it is not found in the natural environment.
- It is located within in a boron group and it is a part of a 7th period.
- It has no naturally occurring isotopes. They are usually incorporated in laboratories.
- Six isotopes have been noted so far consisting of atomic mass 278 and 282 to 286. They are produced by integrating two atoms. Monohydride is one of the simplest forms of a compound of Ununtrium.
- Preliminary experiments in 2017 showed that elemental nihonium is not very volatile; its chemistry remains largely unexplored.