Fe (Iron) is an element with position number 26 in the periodic table.
Located in the IV period. Melting point: 1535 ℃. Density: 7.87 g/cm3.
Electronic configuration of the Iron atom in ascending order of orbital energies:
1s2 2s2 2p6 3s2 3p6 4s2 3d6
Electronic configuration of the Iron atom in ascending order of the levels:
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Reduced electronic configuration Fe:
[Ar] 3d6 4s2
1s2 2s2 2p6 3s2 3p6 4s2 3d6
Electronic configuration of the Iron atom in ascending order of the levels:
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Reduced electronic configuration Fe:
[Ar] 3d6 4s2
Below is the electronic diagram of the Iron atom
Distribution of electrons over energy levels in the Fe atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 14
4-st level (N): 2
1-st level (K): 2
2-st level (L): 8
3-st level (M): 14
4-st level (N): 2
Valence electrons of Iron
The number of valence electrons in a Iron atom - 8.
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )
| Orbital | N | L | M | S |
|---|---|---|---|---|
| s | 4 | 0 | 0 | +1/2 |
| s | 4 | 0 | 0 | -1/2 |
| d | 3 | 2 | -2 | +1/2 |
| d | 3 | 2 | -1 | +1/2 |
| d | 3 | 2 | 0 | +1/2 |
| d | 3 | 2 | 1 | +1/2 |
| d | 3 | 2 | 2 | +1/2 |
| d | 3 | 2 | -2 | -1/2 |
Oxidation states of Iron: +1, +2, +3, +4, +5, +6
Other elements
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Electronic configurations of other elements
Manganese (Mn) electron configurationCobalt (Co) electron configuration
Electronic configuration table
