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What are valence electrons and where are they located

User Bcf
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They are a particle associated with atoms. Hope i helped:)

User Bibek Oli
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Valence electrons are the number of electrons in the outermost shell.
ex.
Na has an electron arrangement of 2.8.1
In the outermost shell only has one electron,so the valence electron of Na is 1
User Benny Skogberg
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