Concept explainers
Interpretation:
In the periodic table of elements, the option that should be placed in the given category is to be determined.
Concept introduction:
Tabular arrangement of chemical elements is defined as periodic table. This table is organized by an increasing

Answer to Problem 8STP
Correct Answer: The correct option is (c).
Explanation of Solution
Reason for correct option: The periodic table is organized by rows and columns. The periodic table arranged the elements in the group which shows a similar
Hence, this is a correct option.
Reasons for incorrect options:
Option (a) The vertical lines in the periodic table is known as a row where they are lesser in number than the horizontal lines. There are no similarities in the chemical nature of elements. Hence, this is an incorrect option.
Option (b) Periods are classified elements based on the number of valance electronic shells, and they are arranged from left to right side of the periodic table. Hence, this is an incorrect option.
Option (d) Elements are made up of similar types of atoms. Elements are taken place in the periodic table, with the same chemical nature or number of the valence electron in the same shells. Hence, this is an incorrect option.
Chapter 3 Solutions
Chemistry: Matter and Change
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