Question

anatomy has the electronic configuration says it to 8 18 17 2 to which of the following she would it be chemically similar N7, CL15, P15, AR18

Answer 1

let me first tell u rhat i m not sure about the answ but i have rad it somewhere i think this question has vome in one of the compettive paper and answer from my side is CL15 or it can be AR18 from these 2 options!!!!sry but i do not k ow the vorrect ANSWER