28Solid
Ni 58.693 Atomic mass · uTransition metals
Nickel
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.
Discovery 1751 (Axel Fredrik Cronstedt)
K2L8M16N2
Physical properties
Values for the element in its standard state.
- Density
- 8.908g/cm³
- Melting point
- 1,728K
- Boiling point
- 3,186K
- Atomic radius
- 121pm
- Bonding type
- Metallic
- Molar heat
- 26.07J/(mol·K)
Inside the atom
Electron arrangement and the energy behind its behavior.
Full electron configuration
1s, 2 electrons; 2s, 2 electrons; 2p, 6 electrons; 3s, 2 electrons; 3p, 6 electrons; 3d, 8 electrons; 4s, 2 electrons;
[Ar] represents 18 core electrons. The full view shows them explicitly.
28 electrons Orbital order preserved from source
- Electronegativity
- 1.91Pauling scale
- First ionization energy
- 737kJ/mol
- Electron affinity
- 112kJ/mol
- Van der Waals radius
- 163pm
Ni NickelAtomic number 28
737kJ/mol
Atomic numberGaps indicate unavailable data
About nickel
- Appearance
- Lustrous, metallic, and silver with a gold tinge
- Discovery
- 1751 (Axel Fredrik Cronstedt)
- Data source
- Read the reference
A missing value means it is unavailable in this reference dataset. Values can vary with measurement method and conditions.