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How do how do you know the number of valence electrons in an atom from the periodic table? User: How do you know the number of valence electrons from the periodic table?
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How do how do you know the number of valence electrons in an atom from the periodic table? User: How do you know the number of valence electrons from the periodic table?

User Blazkovicz
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1 Answer

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The valence electrons is last outer shell of an atom. So it is the last number of the electron configuration on the periodic table.
User Ferares
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