Ni
Nickel
Z 28 58.693 g/molTransition Metal
Nucleus
28 Protons
31 Neutrons
28 Electrons (10 Valence)
Shell distribution: K2 • L8 • M16 • N2 • O0 • P0 • Q0
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[Ar]3d84s2
Oxidation States
CommonRare
0
Pick a state to see its ions
Radii
Empirical
135 pm1.35 Å
Calculated
149 pm1.49 Å
Covalent
124±4 pm1.24±0.04 Å
Van der Waals
163 pm1.63 Å
IonicNi2+
69 pm0.69 Å
Crystal Structure
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Face-centered cubic
Pearson symbol
cF4
Space group
Fm3m No. 225