adiaripley2535 adiaripley2535

13-08-2017
Chemistry

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Answer key which elements puts 7 valence electrons into to 3rd energy level ring

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kphung76127 kphung76127

13-08-2017

This element is Chlorine.
It has 3 energy levels since it is on the third row of the periodic table and it has seven valence electrons since it is in the 17th column (second to last column).

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