Chemistry, asked by pranshdesai, 5 months ago

23. a) An element has three shells. The outermost shell has 7 electrons.
Identify this element and give its valency.
b) Give the total nini

Answers

Answered by Regrets

1

Answer:

The electronic configuration of Br is 2, 8, 8, 7. It have 7 electron in the outermost shell.

Answered by LIPIKAoct

0

Answer:

Cl

Explanation:

3 shells 2,8,7

at. no 17

element Cl

valency -1

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