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How does knowing the number of valence electrons in one of the alien elements help to identify it? Explain how a periodic table is used to accomplish this task.
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How does knowing the number of valence electrons in one of the alien elements help to identify it? Explain how a periodic table is used to accomplish this task.

User Aurelie
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To know the valance electrons in of the alien element we should watch the outermost electron of the element.. the outermost electron will be the valance electron
User Rtenha
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