Ni
Nickel
Element 28 · Transition metal · Period 4, Group 10
Solid · Discovered 1751
Atomic Properties
| Atomic Number | 28 |
| Atomic Mass | 58.693u |
| Electron Configuration | [Ar]4s2 3d8 |
| Electronegativity | 1.91Pauling |
| Atomic Radius | 163pm |
| Ionization Energy | 7.64eV |
| Electron Affinity | 1.156eV |
| Oxidation States | +3, +2 |
Physical Properties
| Standard State | Solid |
| Melting Point | 1728K |
| Boiling Point | 3186K |
| Density | 8.912g/cm³ |
| Group Block | Transition metal |
| Year Discovered | 1751 |