Nihonium is a synthetic chemical element; it has the symbol Nh and atomic number 113. It is extremely radioactive: its most stable known isotope, nihonium-286, has a half-life of about 10 seconds. In the periodic table, nihonium is a transactinide element in the p-block. It is a member of period 7 and group 13.

nihonium (Nh), artificially produced transuranium element of atomic number 113. In 2004 scientists at the RIKEN Nishina Center for Accelerator-Based Science in Saitama, Japan announced the production of one atom of element 113, which was formed when bismuth-209 was fused with zinc-70.

2024年11月5日 · Nihonium (Nh) is an artificial element with atomic number 113. As a superheavy, radioactive metal, nihonium exists only in the laboratory, where it is produced through particle collisions in nuclear reactors. It is among the most recently discovered elements.

2019年2月4日 · Nihonium is a radioactive synthetic element with the symbol Nh and atomic number 113. Because of its position on the periodic table, the element is expected to be a solid metal at room temperature. The discovery of element 113 was made official in 2016. To date, few atoms of the element have been produced, so little is known about its properties.

Nihonium is a chemical element with symbol Nh and atomic number 113. Classified as a post-transition metal, Nihonium is a expected to be a solid at room temperature. 113

The accelerated calcium-48 ion collides into an americium-243 target atom (above) and creates the new 115 element that begins decaying with the emission of alpha particles into element 113. Lawrence Livermore National Laboratory

2016年12月2日 · Properties, sources and uses of nihonium, element 113, formerly called ununtrium.

2012年9月28日 · To date, all the transuranic elements having 93-117 protons have been discovered and confirmed (although 115 and 117 are still not officially recognized), save for element 113. Until now.

2012年9月26日 · Scientists in Japan think they've finally created the elusive element 113, one of the missing items on the periodic table of elements. Element 113 is an atom with 113 protons in its nucleus — a...

Using the RIken LineAC (RILAC) linear accelerator and a novel nuclei separator, called the gas-filled recoil separator (GARIS), the group generated element 113 on the night of July 23, after years of research and preparation.