Question

How does electronic configuration of an related to its position in the modern periodic table ? Give one reason

Answer 1

Through electronic configuration we can find the no. of valence electron as well as valence shell and by the valence electron we find in which group it is situated, by no. of valence shell we can find in which period it is present

Answer 2

Explanation:

In the modern periodic table, atoms with similar electronic configurations are placed in the same column. In a group, the number of valence electrons remains the same.

Elements across a period show an increase in the number of valence electrons.