Electron configuration for Francium (element 87). Orbital diagram

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Fr (Francium) is an element with position number 87 in the periodic table. Located in the VII period. Melting point: 27 ℃. Density: 1.87 g/cm³.

Electronic configuration of the Francium atom in ascending order of orbital energies:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s¹

Electronic configuration of the Francium atom in ascending order of the levels:
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s² 6p⁶ 7s¹

Reduced electronic configuration Fr:
[Rn] 7s¹

Below is the electronic diagram of the Francium atom

Distribution of electrons over energy levels in the Fr atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 18
4-st level (N): 32
5-st level (O): 18
6-st level (P): 8
7-st level (Q): 1

Distribution of electrons in the Francium

Valence electrons of Francium

The number of valence electrons in a Francium atom - 1.
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )

Orbital	N	L	M	S
s	7	0	0	+1/2

Oxidation states of Francium: +1

Other elements

Electronic configurations of other elements

Radon (Rn) electron configuration
Radium (Ra) electron configuration
Electronic configuration table

Francium electron configuration

Valence electrons of Francium

Electronic configurations of other elements