Nickel
Malleable ductile silvery metallic transition element. Discovered by A.F. Cronstedt in 1751.
Gallery

Materialscientist at English Wikipedia, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons

Physical Propertiesmass · density · phase · crystal
Atomic Mass
58.6934Da
Density
8.9000g/cm³
Phase (STP)
Solid
Melting Point
1728.2K
Boiling Point
3186.2K
Molar Heat
0.4440J/(mol·K)
Crystal Structure
FCC
Lattice Constant
3.520Å
Atomic Radiiatomic · covalent · van der Waals
Atomic (Empirical)
135.00pm
Covalent
110.00pm
Van der Waals
197.00pm
Electronic Propertieselectronegativity · ionization · affinity
Electron Configuration
[Ar] 3d8 4s2
Electron Shells
2, 8, 16, 2
Electronegativity
1.91Pauling
Electron Affinity
1.2kJ/mol
1st Ionization Energy
7.6kJ/mol
Oxidation States
-2, -1, 0, +1, +2, +3, +4
Orbital DiagramAufbau · Hund's rule · Pauli exclusion
Full: 1s2 2s2 2p6 3s2 3p6 3d8 4s2Short: [Ar] 3d8 4s2
Ionization Energies (28 known)
Emission Spectrumvisible range · characteristic spectral lines
Abundanceby mass
Log scale · ppm = parts per million by mass
Biological Role
Essential for some plant enzymes (urease). May be required in trace amounts by animals.
Discovery
Discovered By
Axel Cronstedt
Named By
—
Year
1751
Nuclear Data
Known Isotopes
35
Stable Isotopes
5
Stable Mass Numbers
58, 60, 61, 62, 64
Natural isotopic abundance (IUPAC recommended values)
Isotopes of Ni35 known
| Nuclide | Z | N | Mass (AMU) | Half-life | Decay | Jπ | Abundance |
|---|---|---|---|---|---|---|---|
| 48Ni | 28 | 20 | 48.019515 | 2.80 ms | 2p (0.7%), β⁺ (0.3%), β⁺p | 0+ | — |
| 49Ni | 28 | 21 | 49.009157 | 7.50 ms | β⁺ (1%), β⁺p (0.8340000000000001%) | 7/2- | — |
| 50Ni | 28 | 22 | 49.996286 | 18.5 ms | β⁺ (1%), β⁺p (0.73%), 2p (0.14%) | 0+ | — |
| 58Nistable | 28 | 30 | 57.935342 | Stable | 2β⁺ | 0+ | 6807.6900% |
| 60Nistable | 28 | 32 | 59.930785 | Stable | stable (1%) | 0+ | 2622.3100% |
| 61Nistable | 28 | 33 | 60.931055 | Stable | stable (1%) | 3/2- | 113.9900% |
| 62Nistable | 28 | 34 | 61.928345 | Stable | stable (1%) | 0+ | 363.4500% |
| 64Nistable | 28 | 36 | 63.927966 | Stable | stable (1%) | 0+ | 92.5600% |
| 80Ni | 28 | 52 | 79.975051 | 30.0 ms | β⁻ (1%), β⁻n, 2n | 0+ | — |
| 81Ni | 28 | 53 | 80.982727 | Unknown | β⁻ | 3/2+ | — |
| 82Ni | 28 | 54 | 81.988492 | Unknown | β⁻ | 0+ | — |