Nickel electron configuration

Ni (Nickel) is an element with position number 28 in the periodic table. Located in the IV period. Melting point: 1453 ℃. Density: 8.91 g/cm3.
Electronic configuration of the Nickel atom in ascending order of orbital energies:
1s2 2s2 2p6 3s2 3p6 4s2 3d8

Electronic configuration of the Nickel atom in ascending order of the levels:
1s2 2s2 2p6 3s2 3p6 3d8 4s2

Reduced electronic configuration Ni:
[Ar] 3d8 4s2

Below is the electronic diagram of the Nickel atom
Orbital diagram of the Nickel atom
Distribution of electrons over energy levels in the Ni atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 16
4-st level (N): 2
Distribution of electrons in the Nickel

Valence electrons of Nickel

The number of valence electrons in a Nickel atom - 10.
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )
OrbitalNLMS
s400+1/2
s400-1/2
d32-2+1/2
d32-1+1/2
d320+1/2
d321+1/2
d322+1/2
d32-2-1/2
d32-1-1/2
d320-1/2
Oxidation states of Nickel: +1, +2, +3, +4
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