Question

How does the electronic configuraton of an
of an atom relate to its position in the Modern
Periodic Table?
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Answer 1

Answer:

an atom is paced in  a periodic table based on its electronic configuration.

Atoms with similar electronic configuration in the valence shell fall in the same group.

Answer 2

Answer:

the the elements in the same group have same valence electrons means same electrons in outer most shell

Explanation:

and the elements of same period have same number of shell