Question

what is valency of Chlorine​

Answer 1

Valency of Chlorine. The atomic number of chlorine is 17 (Z=17). The electronic configuration of chlorine can be written as 2, 8, 7. 2, 8, 7 electrons are distributed in the shells K, L, M respectively. Therefore, valence electron in chlorine is 7 and it needs to gain 1 electron from the outermost orbit to attain octet ...

Answer 2

it's atomic number is 17

electronic configuration =2,8,7

this means it needs 1 more electron to gain noble gas configuration

so valency =-1

hope it helps u ......