113 Nh 286
Nihonium
unknown, probably transition metal
Properties
- Atomic number
- 113
- Atomic mass
- 286 u
- Category
- unknown, probably transition metal
- Group
- 13
- Period
- 7
- Block
- p-block
- State (room temp)
- Solid
- Outer-shell electrons
- 3
- Electronegativity
- -
- Density
- 16 g/cm³
- Melting point
- 426.85 °C
- Boiling point
- 1156.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p¹
Noble-gas shorthand: [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹
Electrons per shell: 2, 8, 18, 32, 32, 18, 3, which is 3 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
About Nihonium
Nihonium is a chemical element with atomic number 113. It has a symbol Nh. It 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, nihonium-286, has a half-life of 20 seconds.
- Discovered by RIKEN
Nihonium: frequently asked questions
- What is Nihonium?
- Nihonium (Nh) is the chemical element with atomic number 113. It is not yet firmly classified; it is listed as "unknown, probably transition metal".
- What is the atomic number of Nihonium?
- Nihonium's atomic number is 113, which means every Nihonium atom has 113 protons in its nucleus.
- What is the electron configuration of Nihonium?
- The electron configuration of Nihonium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p1 (noble-gas shorthand: [Rn] 5f14 6d10 7s2 7p1). Its electrons are arranged in shells of 2, 8, 18, 32, 32, 18, 3, with 3 in the outermost shell.
- Is Nihonium a metal or a nonmetal?
- Nihonium is not yet firmly classified; it is listed as "unknown, probably transition metal".
- What group and period is Nihonium in?
- Nihonium is in group 13 and period 7 of the periodic table.
- Is Nihonium a solid, liquid, or gas?
- At room temperature, Nihonium is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.