Asked by Ke'Andre Dixon

nickel chemical formula

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Answered by GPT-5 mini AI
The chemical symbol (elemental formula) for nickel is Ni.

- Atomic number: 28
- Standard atomic weight: ~58.69 u
- Common oxidation state: +2 (other states include 0, +3, +4 in some compounds)

Common nickel compounds include NiO (nickel(II) oxide), Ni(OH)2 (nickel(II) hydroxide), NiCl2 (nickel(II) chloride), NiSO4 (nickel(II) sulfate), and Ni(CO)4 (nickel tetracarbonyl, a toxic compound).