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Ber [7]
3 years ago
10

What element has 7 valence electrons

Chemistry
1 answer:
PolarNik [594]3 years ago
7 0
I believe the answer would be halogens
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The effective nuclear charge is the amount of charge experienced by an electron taking into account any shielding effects from o
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Explanation:

First of all, we must know the electron configuration of carbon and boron.

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