← Back to the periodic table
28
Ni
58.693
Nickel
Transition metals · Group 10 · Period 4
Nickel resists corrosion and keeps its strength at high temperatures, which makes it a base metal for stainless steels and superalloys. Our nickel wire guide details the high-purity grades, their typical trace impurities and where each one is used.
Atomic properties
| Atomic number | 28 |
|---|---|
| Symbol | Ni |
| Standard atomic weight | 58.693 |
| Classification | Transition metals |
| Group | 10 |
| Period | 4 |
| Block | d-block |
| Electron configuration | [Ar] 3d8 4s2 |
| Electronegativity (Pauling) | 1.91 |
| Common oxidation states | +2, +3 |
Physical properties
| Phase at 20 °C | Solid |
|---|---|
| Density | 8.908 g/cm³ |
| Melting point | 1455 °C |
| Boiling point | 2913 °C |
| Discovered | 1751 |
| CAS number | 7440-02-0 |
Reference guides for this element
Nickel wire at 99.98+% purity (Ni 200/201) — diameter, temper and lot documentation confirmed in writing.
Nickel Wire 99.98+%