Question
If there are two elements of group 1 and 2 in same period than the element in group 2 will have more metallic character or element in group 1.Acc. To valency element in 2 should be the answer and acc. to the atomic radius element in 1 is the answer.Then what is the real answer.And what should be the criteria of taking the metallic character valrncy(increases 1to 4 and decreases then to 0) or atomic radius