Chapter 6, Problem 32A

Interpretation Introduction

Interpretation:

Positions of alkali metals, alkali earth metals, halogens, and noble gases are to be identified.

Concept Introduction :

The periodic table is a columnar structure that organizes different elements into groups based on how they behave.The elements in the periodic table of today are ordered according to the periodic law.The elements are organized in the modern periodic table in increasing order of their atomic number.

Answer to Problem 32A

Alkali metals- group 1

Alkali earth metals − 2

Halogens − Group 17

Nobel gas − Group 18

Explanation of Solution

In the periodic table, elements are arranged in 18 vertical columns called groups. The alkali metals are placed in group 1. The alkaline earth metals are placed next to alkali metals, i.e., group 2.

Halogens are non-metals and placed in group 17. Nobel gases are the most stable and chemically unreactive elements. They are placed in group 18.