Question

the atomic number of chlorine is 17. What would be it's electronic configuration and it's valency?​

Answer 1

Valency is 7 and electronic configuration is 2,8,7

Answer 2

It is obtained from the number of electrons present in the outermost shell of an atom. The atomic number of chlorine is 17 and the electronic configuration is 2, 8, 7. Therefore, the valency of chlorine is 1

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