Question

why valency of chlorine is 1

Answer 1

chlorine has atomic number 17..its electronic configuration is 2,8,7..thus there are 7 electrons in the last shell...soo it needs only 1 more elctron to be stable..the element can only be stable if the last shell has 8 electrons..thus valency of chlorine is 1

Answer 2

Answer:

Explanation:

Becauae the valance electrons of chlorine is 7 and it needs to get 1 elctrons for the outermost shell