Atomic Properties of Nh
- Atomic Number of Nh
- 113
- Atomic Mass of Nh
- 286.0000 u
- Electron Configuration
- [Rn] 5f14 6d10 7s2 7p1
- Electronegativity
- —
- Block
- p-block
- Group
- 13
- Period
- 7
At RIKEN in Japan, researchers directed zinc-70 ions at bismuth-209. In 2004 they detected a decay chain assigned to element 113, then pursued additional events over years to strengthen the case. IUPAC credited the RIKEN team, making this the first element discovered and named in Asia. The patience behind that sentence matters: a superheavy discovery may rest on only a few reproducible nuclear histories.
Nihonium comes from Nihon, one Japanese name for Japan. The word can be read as “Land of the Rising Sun,” giving a national name to an element produced through international methods and scrutiny.
Its position below thallium places nihonium in group 13. Proposed metallic character and oxidation-state behavior come primarily from calculations; direct chemical evidence is still too sparse for a confident portrait. Relativistic effects may make its chemistry depart from simple downward extrapolation. A periodic address is a research question, not a completed biography.
Every isotope is radioactive. Nihonium-286 survives about 20 seconds, yet production remains atom by atom, so there are no practical applications or measured bulk properties. Researchers use its decay chains to study nuclear structure and routes toward longer-lived superheavy nuclei.
This Instant carries durable recognition. The nucleus vanishes quickly, while the name records a national scientific milestone and the long experimental campaign required to turn three digits on a detector into element 113.