28 Ni 58.693
Nickel
transition metal
Properties
- Atomic number
- 28
- Atomic mass
- 58.693 u
- Category
- transition metal
- Group
- 10
- Period
- 4
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.91 (Pauling)
- Density
- 8.908 g/cm³
- Melting point
- 1454.85 °C
- Boiling point
- 2729.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸
Noble-gas shorthand: [Ar] 3d⁸ 4s²
Electrons per shell: 2, 8, 16, 2, which is 2 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
About Nickel
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.
- Discovered by Axel Fredrik Cronstedt
- Appearance: lustrous, metallic, and silver with a gold tinge
Nickel: frequently asked questions
- What is Nickel?
- Nickel (Ni) is the chemical element with atomic number 28. It is a metal: specifically a transition metal.
- What is the atomic number of Nickel?
- Nickel's atomic number is 28, which means every Nickel atom has 28 protons in its nucleus.
- What is the electron configuration of Nickel?
- The electron configuration of Nickel is 1s2 2s2 2p6 3s2 3p6 4s2 3d8 (noble-gas shorthand: [Ar] 3d8 4s2). Its electrons are arranged in shells of 2, 8, 16, 2, with 2 in the outermost shell.
- Is Nickel a metal or a nonmetal?
- Nickel is a metal: specifically a transition metal.
- What group and period is Nickel in?
- Nickel is in group 10 and period 4 of the periodic table.
- Is Nickel a solid, liquid, or gas?
- At room temperature, Nickel is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.