Chemistry, asked by Snehachinnu7549, 4 months ago

Given an unknown element 'A' has atomic number 17. Write its electronic configuration and find its
period and valence electron present in it.

Answers

Answered by nehal12382

3

Element A - Chlorine

E. C. - 2, 8, 7

Valence Electrons - 7

Period - 3

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