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.