how does the electronic configuration of an atom related to its position of an atom related to its position in the modern period table?give one example.
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the no. of shells help in finding the group where as velency helps in finding period..
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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.
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