Question : What is the total number of periods and groups in the Modern Periodic Table?
Option 1: Period:9 Group:7
Option 2: Period:18 Group:7
Option 3: Period:7 Group:9
Option 4: Period:7 Group:18
Correct Answer: Period:7 Group:18
Solution : The correct answer is Period : 7 Group : 18 .
The modern periodic table is the present form of the periodic table in which the arrangement of elements is in the increasing order of their atomic numbers. The modern periodic table has 7 horizontal rows or periods and 18 vertical columns. The table shows the arrangement of elements based on their atomic numbers and chemical properties. It accommodates a discrete combination of metals, non-metals, and metalloids.
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