How Many Valence (outer Shell) Electrons Are There In An Atom? Such As Lithium, Beryllium And Iron?


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Vincent Davis Profile
Vincent Davis answered
You apparently do not understand how to read your Periodic Table of the Elements.
The valence electrons for the elements Li, Be, and Fe are as follows:
Li has electron configuration 1s22s1 and therefore has 1 valence electron.
Be has electron configuration 1s22s2 and therefore has 2 valence electrons.
Fe is a transition metal most common oxidation is either 3 or 2.
Please follow this hyperlink for a comprehensive Periodic Table:

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