Chapter 1, Problem 1.32SP

Interpretation Introduction

Interpretation:

The number of groups in the periodic table and its labeling has to be discussed

Concept introduction:

Element that means a fundamental substance that can’t be chemically changed or broken into anything simpler is called elements

The periodic table: Each element is identified through a one- or two-letter symbol and it is characterized by an atomic number.

• Let us consider the periodic table begins with hydrogen.
• $\text{118}$ elements are presently known.
• About $90$ elements occur naturally.
• The $\text{14}$ elements beginning with Lanthanum $\left(\text{La to Lu}\right)$ and the $\text{14}$ elements beginning with Actinium $\left(\text{La to Lr}\right)$ are pulled out.
• Elements are organized into $\text{18}$ vertical columns (groups) and $7$ horizontal rows (periods).  The two groups on the left is s-block elements.
• The six on the right is known as main group’s elements.
• The ten in the middle is known as transition metals and finally the $\text{14}$ elements beginning with Lanthanum $\left(\text{La to Lu}\right)$ and the $\text{14}$ elements beginning with Actinium $\left(\text{La to Lr}\right)$.