Electron configuration for Thulium (element 69). Orbital diagram

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Tm (Thulium) is an element with position number 69 in the periodic table. Located in the VI period. Melting point: 1545 ℃. Density: 9.32 g/cm³.

Electronic configuration of the Thulium atom in ascending order of orbital energies:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹³

Electronic configuration of the Thulium atom in ascending order of the levels:
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹³ 5s² 5p⁶ 6s²

Reduced electronic configuration Tm:
[Xe] 4f¹³ 6s²

Below is the electronic diagram of the Thulium atom

Distribution of electrons over energy levels in the Tm atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 18
4-st level (N): 31
5-st level (O): 8
6-st level (P): 2

Distribution of electrons in the Thulium

Oxidation states of Thulium: +2, +3

Other elements

Electronic configurations of other elements

Erbium (Er) electron configuration
Ytterbium (Yb) electron configuration
Electronic configuration table

Thulium electron configuration

Electronic configurations of other elements