Q.8. How does the electronic configuration of an element relate to its position in the Modern Periodic Table?
Divya Prakash Singh
The electronic configuration of an element gives the distribution of electrons in various shells present in the element. The atoms with similar electronic configuration are placed in the same column, hence groups have the same number of valence electrons.
Group number can be known by knowing the number of valence electrons.
The number of shells present in an element is equal to the period number.
Thus, the information of electronic configuration is enough to know the group and period number of an element.