Question

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


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Answer 1

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In the modern periodic table, atoms with similar electronic configurations are placed in the same column. ... Elements across a period show an increase in the number of valence electrons.

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Answer 2

Answer:

The electronic configuration of an atom relates to its position in the modern periodic table as when we arrange the electrons in the 1st , 2nd , 3rd and 4th shells i.e. ... So, its' electronic configuration is 2,8,1 and its valency is +1 . This element therefore comes in Group 1 with +1 valency.

To know its position in periodic table first we should know the electronic configuration of the element. Valence electrons: The electrons, which are present in the outermost shell of an atom are called valence electrons. ... For any element the valence shell number is equal to its period number.