Tc (Technetium) is an element with position number 43 in the periodic table.
Located in the V period. Melting point: 2172 ℃. Density: 11.49 g/cm3.
Electronic configuration of the Technetium atom in ascending order of orbital energies:
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d5
Electronic configuration of the Technetium atom in ascending order of the levels:
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d5 5s2
Reduced electronic configuration Tc:
[Kr] 4d5 5s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d5
Electronic configuration of the Technetium atom in ascending order of the levels:
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d5 5s2
Reduced electronic configuration Tc:
[Kr] 4d5 5s2
Below is the electronic diagram of the Technetium atom
Distribution of electrons over energy levels in the Tc atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 18
4-st level (N): 13
5-st level (O): 2
1-st level (K): 2
2-st level (L): 8
3-st level (M): 18
4-st level (N): 13
5-st level (O): 2
Valence electrons of Technetium
The number of valence electrons in a Technetium atom - 7.
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 | 5 | 0 | 0 | +1/2 |
| s | 5 | 0 | 0 | -1/2 |
| d | 4 | 2 | -2 | +1/2 |
| d | 4 | 2 | -1 | +1/2 |
| d | 4 | 2 | 0 | +1/2 |
| d | 4 | 2 | 1 | +1/2 |
| d | 4 | 2 | 2 | +1/2 |
Oxidation states of Technetium: -3, -1, +1, +2, +3, +4, +5, +6, +7
Other elements
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Electronic configurations of other elements
Molybdenum (Mo) electron configurationRuthenium (Ru) electron configuration
Electronic configuration table
