What Is the Francium Valence Electron Number?

As a member of the periodic table’s alkali metal group, francium possesses one valence electron. The seventh energy level’s s-orbital is where that valence electron is located.

The notation for francium’s entire electron configuration is 1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d10 6s2p6 7s1, which may be abbreviated to [Rn] 7s1. The configuration shows that francium has one, two, eight, 18, 32, and 18 electrons at each energy level, in descending sequence.

According to the element’s atomic number, francium contains 87 electrons and 87 protons in each of its atoms. The word Francium is shortened to Fr.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.


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