Chapter 11, Problem 9RQ

Interpretation Introduction

Interpretation:

In Groups 1A (1)-7A (18) elements, the element having smallest atomic radius in each group has to be given.

Concept Introduction:

Atomic radii:

The atomic radius of an atom can be defined as the distance between the centers of the nucleusand the outermost electron.  In the periodic table, across a period atomic radius is decreases and increases down a group.