Electronic configuration of the four elements are given below: Arrange these elements in increasing order of their metallic character. Give reasons for your answer. (i) [Ar]4s2 (ii) [Ar]3d10 4s2 3) [Ar]3d10 4s2 4p6 5s2 (iv) [Arl 3d10 4s2 4p6 5s1
Alkali metals are the most metallic, followed by alkaline earth metals and transition metals. Among alkali metals – Rubidium (37) is the most metallic. Among alkaline earth metals (Ca, Sr) Sr (Strontium) is more metallic than Calcium (Ca) as the metallic character increases from top to bottom in a group. Zinc – the transition metal is the least metallic. Thus metallic character increases from Zn < Ca < Sr < Rb or (ii) < (i) < (iii) < (iv)
