Considering the elements B, AI, Mg and K, the correct order of their metallic character is:

Considering the elements B, AI, Mg and K, the correct order of their m

1.	Considering the elements B, AI, Mg and K, the correct order of their metallic character is:
Answer» B>Al>Mg>K Al>Mg >B>K Mg >Al>K>B K>Mg>Al>B Solution :In a period, metallic character decreases as we MOVE from left to right. Therefore, metallic character of lt Mg and Al decreases in the order. K GT Mg gt Al. However, within a group, the metallic character, INCREASES from top to bottom. Thus, Al is more metallic than B. Therefore, the correct sequence of decreasing metallic character is K gt Mg AlgtB, i.e.. option (d) is correct.