Concept explainers
Interpretation:
The pattern displayed by elements in the periodic table needs to be identified.
Concept introduction:
According to periodic law, there is repetition of chemical and physical characteristics of the elements takes place when they are put in increasing order of the

Answer to Problem 4STP
Option C is correct.
Explanation of Solution
Reason for correct option:
Atomic number increases from top to bottom and left to right in a group and period respectively. So, the properties of elements are repeated when they are arranged in increasing atomic number.
Reason for incorrect option:
Option A is not correct as atomic radius increases top to bottom in a group and decreases across the period.
Option B and D are quietly right as the
Chapter 9 Solutions
Chemistry: Matter and Change
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