Question

Arrange following elements in increasing orders of metallic character B,Al,Mg,k

Answer 1

B & Al are belongs to p block elements & grp13 Mg & K belongs to s block elements.K belongs to grp 1. Mg belongs to grp 2.The metallic character of elements decreases frm left to right across the period.Thus Mg has more metallic character than Al.Metallic character of elements increases down a grp. M.C of Al is more than that of B. Hence the crt order of M.c is K>Mg>Al>B

Answer 2

B<Al<Mg<K
They are arranged according to metallic character in both gropus and periods