Question

how does the electronic configuration of an atom of an element relate to its position in the modern periodic table ? explain with one example​

Answer 1

Answer:

if An atom has 1 electron in its outermost shell ,the position of that element will be in the 1st group .Likewise no.of shells represent the period number .Example: sodium ef =2,8,1 it's position is 1st group and 3rd period

Answer 2

Answer:

Electronic configuration of an element relates its place in periodic table.

example: take sodium element atomic number(11)

configuration : 1s2 2s2 2p6 3s1

place in modern periodic table

group no : 1 ( see it's last electron)

period no : 3 ( the principal quantum number)

This is the simple way to find the position..

hope this is helpful