113 Nh 286
Nihonium
Post-Transition Metal
Nihonium (Nh) is a chemical element with atomic number 113, classified as a post-transition metal. At room temperature it is a solid. It was discovered in 2004 by RIKEN (Japan).
Properties
- Atomic number
- 113
- Atomic mass
- 286 u
- Category
- Post-Transition Metal
- Group
- 13
- Period
- 7
- Block
- p-block
- Electron configuration
- [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹
- Phase at STP
- Solid
- Density
- 16 g/cm³
- Melting point
- 700 K (426.9 °C)
- Boiling point
- 1430 K (1156.8 °C)
- Electronegativity
- —
- Atomic radius
- —
- Ionization energy
- —
- Discovery
- 2004 · RIKEN (Japan)
Common uses
Research only
Did you know?
Named after Japan (Nihon) where it was discovered.
Experiment with the elements
Nihonium doesn't form any compounds in our lab yet, but the periodic table sandbox lets you combine dozens of other real elements into real compounds — water, table salt, ammonia and many more — with their true chemical formulas.