Chapter 5, Problem 4KT

Interpretation Introduction

Interpretation:

The key term corresponding to the definition “the Group $\text{IA}/1$ elements, excluding hydrogen” is to be stated.

Concept introduction:

The elements in a modern periodic table are arranged in an increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods, whereas vertical columns are known as groups. There are $7$ periods and $18$ groups in a modern periodic table.