Question

How does the electronic configuration of an atom relate to it's position in the Modern Periodic Table ?​

Answer 1

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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.