28Ni58.693
Nickel
Transition metal · element 28 · group 10, period 4
Quick facts
| Symbol | Ni |
|---|---|
| Atomic number | 28 |
| Relative atomic mass | 58.693 |
| Category | Transition metal |
| Position | group 10, period 4 |
| State at 20 °C | Solid |
| Melting point | 1,455 °C |
| Boiling point | 2,913 °C |
| Density | 8.908 g/cm³ |
| Electronegativity | 1.91 |
| Electron configuration | [Ar] 3d8 4s2 |
About Nickel
Nickel has the symbol Ni and atomic number 28, which means every nickel atom has 28 protons in its nucleus and, in a neutral atom, 28 electrons. At room temperature it is a solid.
Transition metals sit in the middle block of the periodic table. They are usually hard, dense and strong, often form coloured compounds, can have more than one ion charge, and many are useful catalysts.
It melts at 1,455 °C and boils at 2,913 °C.
Explore it
See where nickel sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.