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PLEASE HELP!!!!!!!!!!!!!!!!!!!!!
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PLEASE HELP!!!!!!!!!!!!!!!!!!!!!

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!-example-1
User Footy
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They each have one valence electron in their outer shell, but they are also on the same row (period). If you follow this pattern, potassium will also have one valence electron.

Hope this helps!! :)
User ANeves
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