Question

what is the electronic configuration of the element with atomic number 17 indicate the valency of the element​

Answer 1

Explanation:

Chlorine has atomic number 17

Its EC is 3s² 3p⁵

Valency is 1

#answerwithquality #BAL

Answer 2

Answer:

1s2,2s2,2p6,3s2,3p5 and valency of that element is its group number i.e,7