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Sidana [21]
4 years ago
15

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

Chemistry
1 answer:
babymother [125]4 years ago
5 0
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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