Nickel (Ni)

Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge.

Atomic Number

28

Atomic Mass

58.693 u

Category

transition metal

Phase

solid

Density

8.908 g/cm³

Electron Shells

2, 8, 16, 2

Atomic Structure

Protons: 28 • Electrons: 28 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸

Discovery

1751 • Axel Fredrik Cronstedt