Be sure to answer all parts. which is not a group 1a element? cs al na li k which is not a group 2a element? be mg zn ca sr which is not a group 3a element? mn al ga b which is not a group 4a element? c pb si cd which is not a group 5a element? n p as sn which is not a group 6a element? o se bi s which is not a group 7a element? f v br cl which is not a group 8a element? h ar kr ne which is not a transition metal? ag rb au fe