Nickel (Ni)
Niccolum
Nickel (Ni) is a transition metal in period 4, group 10. Its relative atomic mass is 58.693 and the molar mass of the atom is 58.693 g/mol.
Atomic number 28
Atomic mass 58.693
Molar mass 58.693 g/mol
Category Transition metal Solid
Properties of nickel
| Atomic number | 28 |
|---|---|
| Symbol | Ni |
| Latin name | Niccolum |
| Relative atomic mass | 58.693 |
| Molar mass | 58.693 g/mol |
| Group, period, block | 10, 4, d |
| Category | Transition metal |
| State at 20 °C | Solid |
| Electron configuration | [Ar] 3d⁸ 4s² |
| Electronegativity (Pauling) | 1.91 |
| Atomic radius | 135 pm |
Electron configuration of nickel
Electrons per shell
K2L8M16N2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s²
Noble-gas notation
28 protons · 28 electrons[Ar] 3d⁸ 4s²
Formula and compounds of nickel
Simple substanceNinickelMolar mass of Ni: 58.693 g/mol
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Frequently asked questions
The relative atomic mass of nickel is 58.693, so the molar mass of the atom is 58.693 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s². Noble-gas notation: [Ar] 3d⁸ 4s².