question_answer 101)

    Which of the following set of elements is written in order of their increasing metallic character? (a) Be, Mg, Ca                    (b) Na, Li, K                         (c) Mg, Al, Si                       (d) C, O, N

Answer:

                  (d) Metallic character increases down a group and decreases along a period. Thus, metallic character increases in the order Be, Mg, Ca as they belong to same group.