Chapter 18, Problem 29E

Interpretation Introduction

Interpretation:The valence electron configuration of Group 4A elements and the two most important elements on earth from Group 4A needs to be determined along with their importance. Also, the change in metallic character on moving down the Group 4A needs to be explained.

Concept introduction:Group 4A of periodic table contains elements: $\text{C, Si, Ge, Sn, Pb}$ and $\text{Uuq}$ (yet un-named). On moving down the group the atomic size increases due to addition of new shells thus, the atomic size increases on moving from C to Pb.