Calculate the number of valence electrons in Francium using its electron configuration step by step.
Determine the number of valence electrons in Francium (Fr, Element 87)
The abbreviated (condensed) ground electronic configuration for Francium is:
Calculate Electronic Configuration for Francium
Electrons in all the atomic orbitals are the outermost electrons:
Extract the principle quantum number, n, and number of electrons from the electron configuration:
Electron Configuration | n | Orbital | Number of Electrons |
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The outermost electrons with the largest principal quantum number (in this case, n = 0) are valence electrons.
Francium (Fr) has 0 valence electron(s).