Nihonium
| Atomic Number: | 113 | Atomic Radius: | -- |
| Atomic Symbol: | Nh | Melting Point: | -- |
| Atomic Weight: | 286 | Boiling Point: | -- |
| Electron Configuration: | -- | Oxidation States: | -- |
History
Nh is a synthetic element (an element that can be created in a laboratory but is not found in nature) and is extremely radioactive; its most stable known isotope, Nh-286, has a half-life of 20 seconds. It is also known as eka-thallium or simply element 113. It was first reported to have been created in 2003 by the Joint Institute for Nuclear Research in Dubna, Russia, and in 2004 by a team of Japanese scientists at RIKEN. In December 2015, the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP) recognized the element and assigned the priority of the discovery to RIKEN.[7] In June 2016, the IUPAC published a declaration proposing the name nihonium /nɪˈhoʊniəm/, symbol Nh. The name is set to be formally accepted in (or after) November 2016.[1] The name comes from one of the pronunciations of the Japanese word for Japan (日本 nihon?).
https://en.wikipedia.org/wiki/Ununtrium