Question

how does electronic configuration of an atom relate to its position in the modern periodic table

Answer 1

here is your answer

periods show orbit of elements

and group show no. of valance electron

hope it helps you ❤️

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.