Question

The number of electrons in the outermost shell of chlorine is 7. what is the valency and why? class 9th

please give me a proper answer i will mark u at brainlist!!!

Answer 1

the valency of the number of electrons in the outermost shell is one

Answer 2

chlorine has atomic number 17 it can fill it s electron number by 2 8 7 that means it need i more electron to complete its valency by 2 8 8

as chlorine will take a electron from other element it would gain a -1 charge and hwnce its valency would be 1

the element who recieve wlectron has - charge and which gave electron have + charge

hope it helps you