Question

which of the following sets of elements is written correctly in the order of their increasing metallic character?​

Answer 1

Question-

1) 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.